| K'gari | Queensland | 1,840 km² | 152 | 245 m |
| Kabai Island | Aru Islands Regency | 0.22 km² | — | — |
| Kabakon | East New Britain Province | 3.60 km² | — | — |
| Kabal Island | Aru Islands Regency | 0.01 km² | — | — |
| Kabal Island | Aru Islands Regency | 0.00 km² | — | — |
| Kabalam Batan Island | Raja Ampat | 0.51 km² | — | 45 m |
| Kabalampulau Island | Raja Ampat | 0.03 km² | — | — |
| Kabara | Lau | 31 km² | 482 | — |
| Kabawa Island | Tanimbar Islands | 0.56 km² | — | 16 m |
| Kabawdore Island | Raja Ampat | 0.00 km² | — | — |
| Kabbado Island | Aru Islands Regency | 5.61 km² | — | — |
| Kabbikane Islet | Queensland | 0.09 km² | 0 | 4 m |
| Kabenet Island | Raja Ampat | 0.11 km² | — | — |
| Kaboi Island | Teluk Bintuni | 33.6 km² | — | — |
| Kabra Genan Island | Raja Ampat | 1.62 km² | — | 12 m |
| Kabra Lollo Island | Raja Ampat | 0.03 km² | — | — |
| Kabra Pele Island | Raja Ampat | 4.40 km² | — | — |
| Kabra Pele Ketro Island | Raja Ampat | 0.13 km² | — | — |
| Kabrengan Island | Tanimbar Islands | 0.01 km² | — | — |
| Kabu Island | Raja Ampat | 0.38 km² | — | 17 m |
| Kabuai Island | Nabire | 0.03 km² | — | — |
| Kabuef Island | Fakfak | 0.00 km² | — | — |
| Kabuket Tiplol Yefto Dawel Island | Raja Ampat | 0.00 km² | — | — |
| Kabuket Tiplol Yefto Gala Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Fat Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Fit Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Island | Raja Ampat | 0.01 km² | — | — |
| Kacaa Lafa Island | Raja Ampat | 0.01 km² | — | — |
| Kacaa Lafalu Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafalumaisa Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamaifat Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamaifit Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamailim Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamailu Island | Raja Ampat | 0.02 km² | — | — |
| Kacaa Lafamaisa Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamaisi Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamaitol Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamaiwal Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lafamaiwonom Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lim Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Si Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Tol Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Wal Island | Raja Ampat | 0.00 km² | — | — |
| Kacaa Wonom Island | Raja Ampat | 0.00 km² | — | — |
| Kacet Island | Raja Ampat | 0.34 km² | — | 8 m |
| Kadafa Island | Fakfak | 0.00 km² | — | — |
| Kadavu Island | Kadavu | 411 km² | 10,167 | — |
| Kadedermawendi Island | Fakfak | 0.00 km² | — | — |
| Kadovar | Papua New Guinea | 1 km² | 434 | 365 m |
| Kaf Island | Fakfak | 0.00 km² | — | 3 m |
| Kaf Tapori Island | Raja Ampat | 0.00 km² | — | — |
| Kafafkiddae Natuk Island | Fakfak | 0.00 km² | — | — |
| Kafal Ganan Island | Raja Ampat | 0.02 km² | — | — |
| Kafal Island | Raja Ampat | 0.17 km² | — | — |
| Kafal Pale Island | Raja Ampat | 0.03 km² | — | 23 m |
| Kafanyi Island | Raja Ampat | 0.23 km² | — | — |
| Kafargoban Girif Island | Fakfak | 0.00 km² | — | — |
| Kafargoban Island | Fakfak | 0.07 km² | — | — |
| Kafia Island | Raja Ampat | 0.00 km² | — | — |
| Kafiabem Le Island | Raja Ampat | 0.00 km² | — | — |
| Kafiabem Lol Island | Raja Ampat | 0.01 km² | — | — |
| Kafiabem Malass Island | Raja Ampat | 0.03 km² | — | — |
| Kafiabem Mirinle Island | Raja Ampat | 0.11 km² | — | — |
| Kafiaf Island | Yapen Islands | 0.00 km² | — | — |
| Kafiailolo Atsa Island | Raja Ampat | 0.04 km² | — | — |
| Kafiailolo Fat Island | Raja Ampat | 0.01 km² | — | — |
| Kafiailolo Island | Raja Ampat | 0.07 km² | — | — |
| Kafiailolo Lim Island | Raja Ampat | 0.12 km² | — | — |
| Kafiailolo Lu Island | Raja Ampat | 0.03 km² | — | — |
| Kafiailolo Tol Island | Raja Ampat | 0.01 km² | — | — |
| Kafiailolo Wonom Island | Raja Ampat | 0.01 km² | — | — |
| Kafiala Island | Raja Ampat | 0.00 km² | — | — |
| Kafialilol Island | Raja Ampat | 0.00 km² | — | — |
| Kafialilol Niyef Tololya Island | Raja Ampat | 0.00 km² | — | — |
| Kafrafkiddae Barat Island | Fakfak | 0.00 km² | — | — |
| Kafrafkiddae Nenem Island | Fakfak | 0.01 km² | — | — |
| Kafrafkiddae Timur Island | Fakfak | 0.00 km² | — | — |
| Kahdulin Island | Aru Islands Regency | 0.01 km² | — | — |
| Kahdulinwahia Island | Aru Islands Regency | 0.00 km² | — | — |
| Kaibam Island | Raja Ampat | 0.00 km² | — | — |
| Kaibu | Lau | 20 km² | — | — |
| Kaifun Island | Aru Islands Regency | 0.95 km² | — | — |
| Kaihebi Island | Aru Islands Regency | 0.04 km² | — | — |
| Kaikaijuring Island | Aru Islands Regency | 0.02 km² | — | — |
| Kaikōura Island | Auckland Region | — | — | 185 m |
| Kaimohu Island | Southland District | — | — | 61 m |
| Kainasu Lempuang Island | Fakfak | 0.00 km² | — | — |
| Kaipohue Island | Northland Region | 0.14 km² | 0 | 2 m |
| Kairatakgoria Jina Island | Aru Islands Regency | 0.08 km² | — | — |
| Kairatakgoria Sisiay Island | Aru Islands Regency | 0.01 km² | — | — |
| Kairiru | East Sepik Province | 54 km² | — | — |
| Kaiwaka No. 2 Island | Waikato Region | — | — | 11 m |
| Kaiwha Rock | Northland Region | — | — | 9 m |
| Kaiwhai Island | Waikato Region | — | — | 58 m |
| Kaki Island | Manokwari | 0.20 km² | — | — |
| Kalai Island | Aru Islands Regency | 1.42 km² | — | — |
| Kalapaparuang Island | Fakfak | 0.01 km² | — | — |
| Kalawaha Island | Aru Islands Regency | 0.08 km² | — | — |
| Kaleg Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Kaleg Fat Island | Raja Ampat | 0.00 km² | — | — |
| Kaleg Genan Island | Raja Ampat | 0.01 km² | — | — |
| Kaleg Lim Island | Raja Ampat | 0.00 km² | — | — |
| Kaleg Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kaleg Pale Island | Raja Ampat | 3.53 km² | — | 181 m |
| Kaleg Wonom Island | Raja Ampat | 0.01 km² | — | — |
| Kalek Yef Katutup Island | Raja Ampat | 0.00 km² | — | — |
| Kalek Yef Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kalek Yef Recaf Island | Raja Ampat | 0.00 km² | — | — |
| Kalek Yef Tapalyu Island | Raja Ampat | 0.00 km² | — | — |
| Kalek Yef Tolili Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kalek Yefto Sapen Island | Raja Ampat | 0.00 km² | — | — |
| Kalem Atsa Island | Raja Ampat | 0.01 km² | — | — |
| Kalem Lu Island | Raja Ampat | 0.01 km² | — | — |
| Kalem Tol Island | Raja Ampat | 0.01 km² | — | — |
| Kalenan Island | Tanimbar Islands | 3.20 km² | — | — |
| Kalibum Island | Raja Ampat | 0.01 km² | — | — |
| Kalilip Island | Sorong | 0.07 km² | — | — |
| Kaliotdoko Les Island | Raja Ampat | 0.00 km² | — | — |
| Kaliotdoko Lol Island | Raja Ampat | 0.01 km² | — | — |
| Kaliotdoko Matlolo Island | Raja Ampat | 0.00 km² | — | — |
| Kaliotdoko Sawi Island | Raja Ampat | 0.01 km² | — | — |
| Kalipopo Island | Sorong | 0.17 km² | — | — |
| Kalis Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Kalis Fat Island | Raja Ampat | 0.00 km² | — | — |
| Kalis Island | Raja Ampat | 0.57 km² | — | 16 m |
| Kalis Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kalis Tol Island | Raja Ampat | 0.00 km² | — | — |
| Kaliskale Island | Raja Ampat | 3.04 km² | — | 89 m |
| Kaliskale Island | Raja Ampat | 3.04 km² | — | 13 m |
| Kalobo Island | Raja Ampat | 0.06 km² | — | — |
| Kalobo Wei Island | Raja Ampat | 0.06 km² | — | 7 m |
| Kalogos Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kalogos Pale Island | Raja Ampat | 0.02 km² | — | — |
| Kaloinmat Niyef Tolol Island | Raja Ampat | 0.00 km² | — | — |
| Kaloinmat Yefto Nafatabuo Island | Raja Ampat | 0.00 km² | — | — |
| Kaloinmat Yefto Natabuo Island | Raja Ampat | 0.00 km² | — | — |
| Kaloinmat Yefto Palolya Island | Raja Ampat | 0.00 km² | — | — |
| Kaloinmat Yefto Tolya Island | Raja Ampat | 0.00 km² | — | — |
| Kalolom Island | Raja Ampat | 1.61 km² | — | 8 m |
| Kalopajei Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kalopajei Sawi Island | Raja Ampat | 0.00 km² | — | — |
| Kaluf Island | Raja Ampat | 0.11 km² | — | 13 m |
| Kalulus Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Fat Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Fit Island | Raja Ampat | 0.01 km² | — | — |
| Kalulus Island | Raja Ampat | 0.01 km² | — | — |
| Kalulus Lafa Island | Raja Ampat | 0.01 km² | — | — |
| Kalulus Lafamailu Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Lafamaisa Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Lafamaitol Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Lim Island | Raja Ampat | 0.01 km² | — | — |
| Kalulus Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Sawi Island | Raja Ampat | 0.01 km² | — | — |
| Kalulus Si Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Tol Island | Raja Ampat | 0.00 km² | — | — |
| Kalulus Wal Island | Raja Ampat | 0.01 km² | — | — |
| Kalulus Wonom Island | Raja Ampat | 0.01 km² | — | — |
| Kalvik Island | Tual | 1.36 km² | — | 20 m |
| Kalwaha Island | Maluku | 2.59 km² | — | 13 m |
| Kambala Tataun Island | Fakfak | 0.01 km² | — | — |
| Kambala Temun Island | Fakfak | 0.00 km² | — | — |
| Kambasesi Dua Island | Kaimana | 0.00 km² | — | — |
| Kambasesi Satu Island | Kaimana | 0.00 km² | — | — |
| Kambasesi Tiga Island | Kaimana | 0.00 km² | — | — |
| Kambing Island | Fakfak | 0.04 km² | — | — |
| Kambusayo Island | Teluk Bintuni | 37.4 km² | — | — |
| Kamemborif Island | Yapen Islands | 0.01 km² | — | — |
| Kamerunga Island | Queensland | — | — | 20 m |
| Kamet Island | Raja Ampat | 3.48 km² | — | 2 m |
| Kamomyel Island | Sorong | 0.79 km² | — | — |
| Kamomyel Kecil Selatan Island | Sorong | 0.01 km² | — | — |
| Kamomyel Kecil Utara Island | Sorong | 0.06 km² | — | — |
| Kamonyel Island | Sorong | 0.48 km² | — | — |
| Kamonyel Kecil Island | Sorong | 0.02 km² | — | — |
| Kampungtami Island | Jayapura | 0.00 km² | — | — |
| Kamsam Island | Raja Ampat | 0.03 km² | — | — |
| Kamunuri Island | Yapen Islands | 0.00 km² | — | — |
| Kamwa Island | Raja Ampat | 0.27 km² | — | 14 m |
| Kanacea | Lau | 13 km² | 0 | — |
| Kananwat Island | Raja Ampat | 0.57 km² | — | 21 m |
| Kandorwai Island | Supiori | 0.00 km² | — | — |
| Kangaroo Clump | Victoria | — | — | 8 m |
| Kangaroo Island | South Australia | 4,374 km² | 4,250 | 174 m |
| Kangaroo Island | Circular Head | 125 km² | — | — |
| Kangaroo Island | Queensland | — | — | 7 m |
| Kangaroo Island | City of Gold Coast | — | — | 11 m |
| Kangaroo Island | Great Lakes Council | — | — | 12 m |
| Kangaroo Island | Central Highlands Council | — | — | 1,034 m |
| Kangaroo Island | Northern Territory | — | — | 13 m |
| Kangaroo Island | Great Lakes Council | — | — | 1 m |
| Kangaroo Island | Roper Gulf Region | — | — | 2 m |
| Kangaroo Island | Gladstone Region | — | — | 16 m |
| Kangaroo Reef | South Australia | — | — | 2 m |
| Kangieri Island | Teluk Wondama | 0.00 km² | — | — |
| Kani Island | Fakfak | 4.15 km² | — | — |
| Kanig Island | Queensland | — | — | 57 m |
| Kanim Island | Raja Ampat | 0.12 km² | — | 49 m |
| Kanium Island | Raja Ampat | 0.01 km² | — | — |
| Kanjokanaha Island | Fakfak | 0.00 km² | — | — |
| Kanjokanoha Island | Fakfak | 0.03 km² | — | — |
| Kanmeni Island | Aru Islands Regency | 0.61 km² | — | — |
| Kanober Island | Raja Ampat | 0.53 km² | — | 31 m |
| Kanowna Island | Victoria | — | — | 55 m |
| Kansyairar Island | Raja Ampat | 0.01 km² | — | — |
| Kanton Island | Phoenix Islands | 9.15 km² | 1,018 | — |
| Kao | Haʻapai district | 11.6 km² | 0 | 1,030 m |
| Kaosnanam Island | Fakfak | 0.00 km² | — | — |
| Kapal Pale Island | Raja Ampat | 0.00 km² | — | — |
| Kapat Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kapat Takek Palyasancatolilia Island | Raja Ampat | 0.00 km² | — | — |
| Kapat Takek Palyasancopo Island | Raja Ampat | 0.00 km² | — | — |
| Kapat Takek Palyasancoptolilia Island | Raja Ampat | 0.00 km² | — | — |
| Kapat Um Island | Raja Ampat | 0.00 km² | — | — |
| Kapatabiyem Island | Raja Ampat | 0.00 km² | — | — |
| Kapatalvia Island | Raja Ampat | 0.00 km² | — | — |
| Kapatapsipi Island | Raja Ampat | 0.00 km² | — | — |
| Kapatatmetem Island | Raja Ampat | 0.00 km² | — | — |
| Kapatayei Les Island | Raja Ampat | 0.31 km² | — | — |
| Kapatayei Lool Island | Raja Ampat | 0.00 km² | — | — |
| Kapatbem Genan Island | Raja Ampat | 0.01 km² | — | — |
| Kapatbem Logina Island | Raja Ampat | 0.01 km² | — | — |
| Kapatbem Peley Island | Raja Ampat | 0.01 km² | — | — |
| Kapatbem Tapak Island | Raja Ampat | 0.02 km² | — | — |
| Kapatbo Island | Raja Ampat | 0.00 km² | — | — |
| Kapatbus Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kapatbus Island | Raja Ampat | 0.00 km² | — | — |
| Kapatbus Pale Island | Raja Ampat | 0.00 km² | — | — |
| Kapatcol Atsa Island | Raja Ampat | 0.01 km² | — | — |
| Kapatcol Fat Island | Raja Ampat | 0.01 km² | — | — |
| Kapatcol Gamgom Tip Island | Raja Ampat | 0.00 km² | — | — |
| Kapatcol Lim Island | Raja Ampat | 0.00 km² | — | — |
| Kapatcol Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kapatcol Tol Island | Raja Ampat | 0.01 km² | — | — |
| Kapatcum Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Kapatcum Fat Island | Raja Ampat | 0.00 km² | — | — |
| Kapatcum Lu Island | Raja Ampat | 0.01 km² | — | — |
| Kapatdau Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kapatdau Les Island | Raja Ampat | 0.02 km² | — | — |
| Kapatdau Lool Island | Raja Ampat | 0.00 km² | — | — |
| Kapatdau Matlolo Island | Raja Ampat | 0.00 km² | — | — |
| Kapatdau Sawi Island | Raja Ampat | 0.00 km² | — | — |
| Kapatdayan Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kapatdayan Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kapatdayan Sawi Island | Raja Ampat | 0.00 km² | — | — |
| Kapatfeyef Les Island | Raja Ampat | 0.00 km² | — | — |
| Kapatfeyef Lool Island | Raja Ampat | 0.00 km² | — | — |
| Kapatfeyef Matlolo Island | Raja Ampat | 0.00 km² | — | — |
| Kapatgag Island | Raja Ampat | 0.00 km² | — | — |
| Kapatgitar Island | Raja Ampat | 0.00 km² | — | — |
| Kapatkasieyo Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kapatkawuto Island | Raja Ampat | 0.00 km² | — | — |
| Kapatletcunut Island | Raja Ampat | 0.01 km² | — | — |
| Kapatlolo Ganan Island | Raja Ampat | 0.01 km² | — | — |
| Kapatlolo Palay Island | Raja Ampat | 0.00 km² | — | — |
| Kapatmemau Les Island | Raja Ampat | 0.00 km² | — | — |
| Kapatmemaubro Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kapatmemaubro Matlolo Island | Raja Ampat | 0.00 km² | — | — |
| Kapatmemaubro Palay Island | Raja Ampat | 0.01 km² | — | — |
| Kapatmemaubro Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kapatmemaubro Sawi Island | Raja Ampat | 0.00 km² | — | — |
| Kapatmol Island | Raja Ampat | 0.00 km² | — | — |
| Kapatmul Palolon Island | Raja Ampat | 0.00 km² | — | — |
| Kapatnufut Island | Raja Ampat | 0.38 km² | — | — |
| Kapatpaga Island | Raja Ampat | 0.00 km² | — | — |
| Kapatpelerio Island | Raja Ampat | 0.00 km² | — | — |
| Kapatranten Island | Raja Ampat | 0.01 km² | — | — |
| Kapatranten Lool Island | Raja Ampat | 0.00 km² | — | — |
| Kapatranten Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kapatsaparang Ganan Island | Raja Ampat | 0.01 km² | — | — |
| Kapatsaparang Island | Raja Ampat | 0.00 km² | — | — |
| Kapatsaparang Palay Island | Raja Ampat | 0.01 km² | — | — |
| Kapatselyel Island | Raja Ampat | 0.00 km² | — | — |
| Kapatsumailapo Lool Island | Raja Ampat | 0.00 km² | — | — |
| Kapatsumailapo Matlolo Island | Raja Ampat | 0.00 km² | — | — |
| Kapattawu Atsa Island | Raja Ampat | 0.01 km² | — | — |
| Kapattawu Lu Island | Raja Ampat | 0.00 km² | — | — |
| Kapattawu Tol Island | Raja Ampat | 0.00 km² | — | — |
| Kapattaya Island | Raja Ampat | 0.00 km² | — | — |
| Kapcan Ganan Island | Raja Ampat | — | — | 17 m |
| Kapcan Pale Island | Raja Ampat | 0.11 km² | — | 20 m |
| Kapingamarangi | Pohnpei State | 1.10 km² | — | — |
| Kapiti Island | Wellington Region | 19.6 km² | — | 521 m |
| Kaplisomna Genan Island | Raja Ampat | 0.00 km² | — | — |
| Kaplisomna Peley Island | Raja Ampat | 0.01 km² | — | — |
| Kapunda Island | South Australia | — | — | 15 m |
| Kaputenkatuan Island | Raja Ampat | 0.01 km² | — | — |
| Karababu Island | Sorong | 6.13 km² | — | 2 m |
| Karabaik Island | Sorong | 3.47 km² | — | 22 m |
| Karabra Island | Sorong | 139.9 km² | — | — |
| Karaka Island | Central Maluku | 0.02 km² | — | 17 m |
| Karam Baba Island | Teluk Wondama | 0.05 km² | — | — |
| Karam Katu Selatan Island | Teluk Wondama | 0.00 km² | — | — |
| Karam Katu Tengah Island | Teluk Wondama | 0.00 km² | — | — |
| Karam Katu Timur Island | Teluk Wondama | 0.01 km² | — | — |
| Karam Katu Utara Island | Teluk Wondama | 0.01 km² | — | — |
| Karamatni Yef Natatoleya Island | Raja Ampat | 0.05 km² | — | — |
| Karambomai Island | Teluk Wondama | 0.01 km² | — | — |
| Karami Island | Teluk Wondama | 0.15 km² | — | 1 m |
| Karamuramu Island | Auckland Region | 0.06 km² | — | — |
| Karang Island | South Aru | 3.11 km² | — | 4 m |
| Karang Musyodik Island | Jayapura | 0.00 km² | — | — |
| Karang Sagof Island | Raja Ampat | 0.00 km² | — | — |
| Karang Yapbari | Indonesia | — | — | 30 m |
| Karao Island | Aru Islands Regency | 0.27 km² | — | — |
| Karapese Island | Sorong | 1.12 km² | — | — |
| Karapese Kecil Island | Sorong | 0.23 km² | — | — |
| Karapese Selatan Island | Sorong | 0.05 km² | — | — |
| Karapese Utara Island | Sorong | 0.04 km² | — | — |
| Karatat Island | Tanimbar Islands | 0.38 km² | — | 35 m |
| Karau Island | Raja Ampat | 0.03 km² | — | — |
| Karaum Island | Aru Islands Regency | 2.10 km² | — | — |
| Karaumpi Island | Yapen Islands | 0.22 km² | — | — |
| Karawapof Yef Sarap Island | Raja Ampat | 0.00 km² | — | — |
| Karawapop Genan Island | Raja Ampat | 0.01 km² | — | — |
| Karawapop Pale Island | Raja Ampat | 1.36 km² | — | 94 m |
| Karbaken Iba Island | Raja Ampat | 0.00 km² | — | — |
| Karbaken Mgun Island | Raja Ampat | 0.00 km² | — | — |
| Karboi Island | Biak Numfor | 0.00 km² | — | — |
| Karebar Lempuang Tataun Island | Fakfak | 0.00 km² | — | — |
| Karebar Lempuang Temun Island | Fakfak | 0.00 km² | — | — |
| Karen Shoal | South Australia | — | — | 14 m |
| Karerei Island | Maluku | 1.35 km² | — | 32 m |
| Karetoto Island | Waikato Region | — | — | 110 m |
| Karewa Island | Bay of Plenty Region | — | — | 79 m |
| Kargaborborar Island | Aru Islands Regency | 0.00 km² | — | — |
| Kargaeyam Island | Aru Islands Regency | 0.03 km² | — | — |
| Kari Island | Central Maluku | 0.00 km² | — | — |
| Karibar Lempuang Besar Island | Fakfak | 0.00 km² | — | — |
| Karibar Lempuang Kecil Island | Fakfak | 0.00 km² | — | — |
| Karihoa Island | Waikato Region | — | — | 9 m |
| Karionim Island | Fakfak | 0.00 km² | — | — |
| Kariori Island | Yapen Islands | 0.13 km² | — | 23 m |
| Kaririai Island | Nabire | 0.00 km² | — | — |
| Karkaba Island | Fakfak | 0.00 km² | — | — |
| Karkar Island | Madang Province | 362 km² | 65,000 | 1,839 m |
| Karlaedalgul Island | Aru Islands Regency | 0.00 km² | — | — |
| Karlewen Island | Raja Ampat | 0.00 km² | — | — |
| Karmug Island | Aru Islands Regency | 0.00 km² | — | — |
| Karngam Island | Aru Islands Regency | 0.01 km² | — | — |
| Karniga Island | Queensland | — | — | 18 m |
| Karobak Island | Fakfak | 0.00 km² | — | — |
| Karodi Island | Southeast Maluku | 0.00 km² | — | — |
| Karosi Kecil Island | West Papua | 0.01 km² | — | — |
| Karosi Selatan Island | West Papua | 0.00 km² | — | — |
| Karoupi Besar Island | Yapen Islands | 0.00 km² | — | — |
| Karoupi Kecil Island | Yapen Islands | 0.00 km² | — | — |
| Karslake Island | Northern Territory | — | — | 13 m |
| Karuati Island | Yapen Islands | 0.05 km² | — | — |
| Karui Island | Supiori | 0.02 km² | — | — |
| Karuligin Palay Island | Raja Ampat | 0.01 km² | — | — |
| Karuligin Palay Island | Raja Ampat | 0.01 km² | — | — |
| Karundauni Baba Island | Teluk Wondama | 0.00 km² | — | — |
| Karundauni Katu Island | Teluk Wondama | 0.00 km² | — | — |
| Karwar Oser Island | Biak Numfor | 0.00 km² | — | — |
| Karwar Suru Island | Biak Numfor | 0.00 km² | — | — |
| Kasam Kapatcol Malastoyoklol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Kapatcol Manyanim Toyoklol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Kapatcol Mulo Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Kapatcol Polapo Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Kapatcol Tolololu Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Kapatcol Topalolon Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Kaleg Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Katem Mudlol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Kautuntabo Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Lu Mudlol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Macois Mudlol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Malantoyoklol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Pale Mudlol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Palelu Mudlol Island | Raja Ampat | 0.01 km² | — | — |
| Kasam Yef Paletomolo Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Paletoyoklol Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Paleumta Island | Raja Ampat | 0.00 km² | — | — |
| Kasam Yef Palolon Mudlol Island | Raja Ampat | 0.00 km² | — | — |
| Kasawari Island | Aru Islands Regency | 0.01 km² | — | — |
| Kasei Island | Biak Numfor | 0.00 km² | — | — |
| Kasim Island | Sorong | 2.45 km² | — | 4 m |
| Kasimraja Island | Raja Ampat | 0.17 km² | — | — |
| Kasio Palay Island | Raja Ampat | 0.00 km² | — | — |
| Kasuari Island | Fakfak | 0.00 km² | — | — |
| Kasuk Besar Island | Fakfak | 0.00 km² | — | — |
| Kasuk Kecil Island | Fakfak | 0.00 km² | — | — |
| Kasurwainnunusa Island | Fakfak | 0.01 km² | — | — |
| Kaswari Sasaini Barat Island | Aru Islands Regency | 0.07 km² | — | — |
| Kaswari Sasaini Tengah Island | Aru Islands Regency | 0.01 km² | — | — |
| Kaswari Sasaini Timur Island | Aru Islands Regency | 0.04 km² | — | — |
| Katamba Island | Aru Islands Regency | 0.09 km² | — | — |
| Katapu Island | Raja Ampat | 0.01 km² | — | 1 m |
| Katarapko Island | South Australia | — | — | 21 m |
| Katekatetawana Island | Fakfak | 0.01 km² | — | — |
| Kateri Island | Teluk Wondama | 0.00 km² | — | — |
| Kathleen Island | Tasmania | — | — | 72 m |
| Katimin Island | Sorong | 0.88 km² | — | — |
| Katinusa Island | Fakfak | 0.02 km² | — | — |
| Katutifmatan Island | Fakfak | 0.00 km² | — | — |
| Katyomur Island | Tanimbar Islands | 0.00 km² | — | — |
| Kaudifu Island | Supiori | 0.00 km² | — | — |
| Kaumag Island | Queensland | — | — | 6 m |
| Kaunutko Island | Raja Ampat | 0.00 km² | — | — |
| Kaunutsolon Island | Raja Ampat | — | — | 25 m |
| Kawai Di To Fat Island | Raja Ampat | 0.00 km² | — | — |
| Kawai Di To Lol Island | Raja Ampat | 0.01 km² | — | — |
| Kawai Di Tol Island | Raja Ampat | 0.00 km² | — | — |
| Kawak Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Kawak Iving Island | Sorong | 0.00 km² | — | — |
| Kawak Mabu Bolos Island | Sorong | 0.00 km² | — | — |
| Kawak Pale Island | Raja Ampat | 0.00 km² | — | — |
| Kawamasaudi Palolon Island | Raja Ampat | 0.00 km² | — | — |
| Kawamasaudi Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kawamasaudi Sawi Island | Raja Ampat | 0.01 km² | — | — |
| Kawau Island | Auckland Region | 2.05 km² | 81 | 182 m |
| Kawayumi Island | Yapen Islands | 0.06 km² | — | — |
| Kaweidius Baba Island | Teluk Wondama | 0.00 km² | — | — |
| Kaweidius Katu Island | Teluk Wondama | 0.00 km² | — | — |
| Kawuto Les Island | Raja Ampat | 0.02 km² | — | — |
| Kawuto Matlolo Island | Raja Ampat | 0.01 km² | — | — |
| Kawuto Palay Island | Raja Ampat | 0.02 km² | — | — |
| Kawuto Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kayabil Island | Aru Islands Regency | 0.00 km² | — | — |
| Kayabilo Island | Raja Ampat | 0.01 km² | — | — |
| Kayangel | Kayangel | 0.98 km² | 188 | — |
| Kayangel Atoll | Kayangel | 1.39 km² | — | 4 m |
| Kaycebo Island | Sarmi | 0.02 km² | — | — |
| Kayerepop Island | Raja Ampat | 0.38 km² | — | — |
| Kayitlilin Island | Raja Ampat | 0.00 km² | — | — |
| Kayoniyef Island | Raja Ampat | 0.00 km² | — | — |
| Kayutuworok Island | Raja Ampat | 0.01 km² | — | — |
| Kbori Island | Biak Numfor | 0.16 km² | — | 12 m |
| Keakereiati Island | Yapen Islands | 0.85 km² | — | — |
| Keatinge Islet | Queensland | — | — | 10 m |
| Kebon Besar Island | Sorong | 0.18 km² | — | — |
| Kebon Island | Sorong | 0.30 km² | — | 1 m |
| Kebon Kecil Island | Sorong | 0.04 km² | — | — |
| Kebonce Island | Raja Ampat | 0.05 km² | — | — |
| Kebu Island | Sorong | 0.96 km² | — | 18 m |
| Kecil Island | Central Maluku | 0.00 km² | — | — |
| Kedwari Island | Tanimbar Islands | 0.02 km² | — | — |
| Keelan Island | Queensland | — | — | 62 m |
| Kefing Island | Eastern Seram | 0.23 km² | — | 10 m |
| Kei Kecil Island | Southeast Maluku | 415.9 km² | — | 104 m |
| Keiari | Indonesia | — | — | 11 m |
| Keki Besar Island | Central Maluku | 0.35 km² | — | 161 m |
| Kelapa Island | Fakfak | 0.03 km² | — | — |
| Kelapa Kecil Island | Teluk Bintuni | 4.76 km² | — | — |
| Kelatkelat Empat Island | Fakfak | 0.00 km² | — | — |
| Kelatkelat Tiga Island | Fakfak | 0.00 km² | — | — |
| Kelilau Island | Eastern Seram | 0.00 km² | — | — |
| Keliobar Wahan Island | Tanimbar Islands | 0.00 km² | — | — |
| Kelirey Island | Eastern Seram | 0.00 km² | — | — |
| Kelwulan Selatan Island | Tanimbar Islands | 0.00 km² | — | — |
| Kelwulan Utara Island | Tanimbar Islands | 0.00 km² | — | — |
| Kem Iba Island | Raja Ampat | 0.53 km² | — | 17 m |
| Kem Mgun Island | Raja Ampat | 0.20 km² | — | — |
| Kemmonakek Island | Raja Ampat | 0.00 km² | — | — |
| Kemselem Island | Raja Ampat | 0.00 km² | — | — |
| Kenari Island | Aru Islands Regency | 0.02 km² | — | — |
| Kenasore Island | Teluk Wondama | 0.46 km² | — | — |
| Kenjape Dae Island | Tanimbar Islands | 0.00 km² | — | — |
| Kenjarnimadiriain Barat Island | Tanimbar Islands | 0.00 km² | — | — |
| Kent Island | Queensland | — | — | 85 m |
| Kent Rock | Tasmania | — | — | 49 m |
| Keoghs Island | New South Wales | — | — | 149 m |
| Kepou Kariye Besar Island | Jayapura | 0.01 km² | — | — |
| Kepou Kariye Kecil Island | Jayapura | 0.00 km² | — | — |
| Kepou Kwa Island | Jayapura | 0.00 km² | — | — |
| Kepou Yo Island | Jayapura | 0.01 km² | — | — |
| Keraf Barat Daya Island | Fakfak | 0.01 km² | — | — |
| Keraf Barat Island | Fakfak | 0.00 km² | — | — |
| Keraf Besar Island | Fakfak | 1.09 km² | — | — |
| Keraf Kecil Island | Fakfak | 0.05 km² | — | — |
| Keraf Selatan Island | Fakfak | 0.00 km² | — | — |
| Keraf Tengah Island | Fakfak | 0.00 km² | — | — |
| Keraf Timur Island | Fakfak | 0.00 km² | — | — |
| Keraf Timur Laut Island | Fakfak | 0.03 km² | — | — |
| Keraf Utara Island | Fakfak | 0.00 km² | — | — |
| Keraka Besar Island | Teluk Bintuni | 11.0 km² | — | — |
| Keramat Niyef Tonatao Island | Raja Ampat | 0.00 km² | — | — |
| Keraun Barat Island | Aru Islands Regency | 0.01 km² | — | — |
| Keraun Selatan Island | Aru Islands Regency | 0.00 km² | — | — |
| Keraun Tengah Island | Aru Islands Regency | 0.00 km² | — | — |
| Kerawara | East New Britain Province | 0.84 km² | — | — |
| Kerr Island | Queensland | 0.02 km² | 0 | — |
| Kertchleys Island | New South Wales | — | — | 8 m |
| Keru Iwyor Island | Raja Ampat | 0.00 km² | — | — |
| Keru Kaibam Island | Raja Ampat | 0.00 km² | — | — |
| Kesbui Island | Tanimbar Islands | 0.04 km² | — | — |
| Kesui Island | Eastern Seram | 29.5 km² | 5,208 | 183 m |
| Keswick Island | Queensland | 5.30 km² | — | 195 m |
| Keswu Island | Tanimbar Islands | 7.19 km² | — | 74 m |
| Ketchem Island | Tasmania | — | — | 3 m |
| Keyser Island | Queensland | — | — | 11 m |
| Keyser Island | Queensland | — | — | 9 m |
| Khunévéo | Malampa | — | — | 1 m |
| Kianinny Island | New South Wales | — | — | 48 m |
| Kid Island | Tasmania | — | — | 46 m |
| Kidaemagen Island | Fakfak | 0.00 km² | — | — |
| Kidan Island | Eastern Seram | 0.21 km² | — | — |
| Kifar Island | Eastern Seram | 0.06 km² | — | 9 m |
| Kiffin Island | South Australia | — | — | 19 m |
| Kikir Island | Nabire | 0.01 km² | — | — |
| Kikirwaisa Island | Teluk Wondama | 0.00 km² | — | — |
| Kili Island | Marshall Islands | 0.93 km² | 774 | — |
| Killeen Island | West Coast Region | — | — | 62 m |
| Kilwaru Island | Eastern Seram | 0.05 km² | — | — |
| Kinaba Island | Queensland | — | — | 12 m |
| Kinadadirwain Island | Fakfak | 0.01 km² | — | — |
| Kinak Tapor Island | Raja Ampat | 0.00 km² | — | — |
| Kinam Barat Island | Fakfak | 0.02 km² | — | — |
| Kinam Timur Island | Fakfak | 0.02 km² | — | — |
| King George Island | Tasmania | 0.20 km² | — | — |
| King Island | King Island Council | 1,098 km² | 1,570 | 162 m |
| King Island | Queensland | — | — | 11 m |
| Kings Island | New South Wales | — | — | 1 m |
| Kinross Island | New South Wales | — | — | 2 m |
| Kiritimati | Line Islands | 388.4 km² | 7,369 | 13 m |
| Kiriwina | Milne Bay Province | 290.5 km² | 22,163 | — |
| Kirkby Island | South Australia | — | — | 26 m |
| Kitai Bai Island | Milne Bay Province | 0.11 km² | — | 10 m |
| Kitai Bona Bona Island | Milne Bay Province | 0.42 km² | — | 29 m |
| Kitai Katoa Island | Milne Bay Province | 0.55 km² | — | 101 m |
| Kitai Katu Island | Milne Bay Province | 0.72 km² | — | 45 m |
| Kitai Lilivea Island | Milne Bay Province | 3 km² | — | 154 m |
| Kitava | Milne Bay Province | 15 km² | 2,907 | — |
| Kitchener Island | New South Wales | — | — | 20 m |
| Kitmontau Island | Raja Ampat | 0.08 km² | — | — |
| Kiwai Island | Western Province | 359.1 km² | 2,092 | — |
| Klasabun Besar Island | Sorong | 30.9 km² | — | — |
| Klasabun Kecil Island | Sorong | 5.23 km² | — | — |
| Knife Island | Northern Territory | — | — | 5 m |
| Knight Island | Queensland | — | — | 103 m |
| Knox Atoll | Marshall Islands | 0.98 km² | — | 3 m |
| Koba Island | Maluku | — | — | 31 m |
| Kobadangar Island | Aru Islands Regency | 26.6 km² | — | — |
| Kobaselfara Island | Aru Islands Regency | 168.1 km² | — | — |
| Kobaseltimur Island | Aru Islands Regency | 217.2 km² | — | — |
| Kobefin Island | Aru Islands Regency | 0.03 km² | — | — |
| Kobolun Island | Aru Islands Regency | 0.44 km² | — | — |
| Kobroor Island | Aru Islands Regency | 1,723 km² | — | 41 m |
| Kobus Ni Nuu Island | Raja Ampat | 0.00 km² | — | — |
| Kobus Ni Pat Island | Raja Ampat | 0.00 km² | — | — |
| Kodall Island | Queensland | — | — | 9 m |
| Kodor Island | Raja Ampat | 0.82 km² | — | 51 m |
| Kofanusa Island | Fakfak | 0.02 km² | — | — |
| Kofiau Island | Raja Ampat | 145.6 km² | — | 47 m |
| Kofnikapat Island | Raja Ampat | 0.00 km² | — | — |
| Kofot Island | Raja Ampat | 0.00 km² | — | — |
| Koh Island | Raja Ampat | 0.02 km² | — | 114 m |
| Koh-I-Noor Rock | Tasmania | — | — | 19 m |
| Kohlomwohia Island | Aru Islands Regency | 0.00 km² | — | — |
| Koiburi Island | Supiori | 0.00 km² | — | — |
| Koikoi Island | Aru Islands Regency | 0.11 km² | — | — |
| Koil Island | East Sepik Province | 2 km² | 721 | — |
| Kojoffonut Island | Raja Ampat | 0.00 km² | — | — |
| Kokat Island | Tanimbar Islands | 0.21 km² | — | — |
| Kokodi Barat Island | Aru Islands Regency | 0.04 km² | — | — |
| Kokodi Timur Island | Aru Islands Regency | 0.03 km² | — | — |
| Kokoi Island | Fakfak | 0.02 km² | — | — |
| Kokoitawar Island | Fakfak | 0.00 km² | — | — |
| Kokokuan Natuk Island | Fakfak | 0.00 km² | — | — |
| Kokokuan Nenem Island | Fakfak | 0.00 km² | — | — |
| Kokoraf Barat Island | Fakfak | 0.03 km² | — | 1 m |
| Kokoraf Timur Island | Fakfak | 0.01 km² | — | — |
| Kola Island | Aru Islands Regency | 287.6 km² | — | 41 m |
| Kolaim Island | Aru Islands Regency | 141.9 km² | — | — |
| Kolepom Island | Nabire | 11,742 km² | 11,000 | 4 m |
| Kolmamoi Island | Aru Islands Regency | 0.09 km² | — | — |
| Kolordem Island | Aru Islands Regency | 0.08 km² | — | — |
| Kolren Island | Aru Islands Regency | 0.00 km² | — | — |
| Koltubai Island | Aru Islands Regency | 0.13 km² | — | 1 m |
| Kolwiri Island | Aru Islands Regency | 0.02 km² | — | — |
| Komakoraia Island | Northland Region | — | — | 21 m |
| Komar Baba Island | Teluk Wondama | 0.26 km² | — | — |
| Komar Katu Utara Island | Teluk Wondama | 0.00 km² | — | — |
| Komata Wanan Island | Aru Islands Regency | 0.00 km² | — | — |
| Komfane | Maluku | — | — | 21 m |
| Komi Island | Teluk Wondama | 0.00 km² | — | — |
| Komolom Island | Kimaam | 695 km² | 554 | 10 m |
| Kon Island | Eastern Seram | 0.12 km² | — | 8 m |
| Konde Baba Island | Teluk Wondama | 0.00 km² | — | — |
| Konde Katu Island | Teluk Wondama | 0.00 km² | — | — |
| Kondireng Island | Yapen Islands | 0.02 km² | — | — |
| Kondiri | Indonesia | — | — | 1 m |
| Kongan Rock | Queensland | — | — | 16 m |
| Konggoni Island | Yapen Islands | 0.15 km² | — | — |
| Konuli Island | Eastern Seram | 0.00 km² | — | — |
| Konwaf Island | Supiori | 0.02 km² | — | — |
| Kooragang Island | City of Newcastle | — | 4 | 9 m |
| Kopafudi Island | Supiori | 0.02 km² | — | — |
| Kopato Island | Fakfak | 0.00 km² | — | — |
| Kopbarai Island | Supiori | 0.01 km² | — | — |
| Kope Island | Indonesia | — | — | 21 m |
| Kopowi Island | Biak Numfor | 0.00 km² | — | — |
| Koradam Island | Fakfak | 0.00 km² | — | — |
| Koraga Island | Eastern Seram | 0.00 km² | — | — |
| Kore Island | Tanimbar Islands | 0.55 km² | — | 19 m |
| Koree Island | New South Wales | — | — | 20 m |
| Korio Island | Teluk Wondama | 0.01 km² | — | — |
| Korio Kecil Island | Teluk Wondama | 0.00 km² | — | — |