| Wa Karyon Ninu Island | Raja Ampat | 0.00 km² | — | — |
| Waaf Atsa Island | Raja Ampat | 0.01 km² | — | — |
| Waaf Fat Island | Raja Ampat | 0.02 km² | — | — |
| Waaf Fit Island | Raja Ampat | 0.02 km² | — | — |
| Waaf Island | Raja Ampat | 0.65 km² | — | 93 m |
| Waaf Lim Island | Raja Ampat | 0.10 km² | — | — |
| Waaf Lu Island | Raja Ampat | 0.01 km² | — | — |
| Waaf Tol Island | Raja Ampat | 0.19 km² | — | — |
| Waaf Wal Island | Raja Ampat | 0.57 km² | — | — |
| Waaf Wonom Island | Raja Ampat | 0.02 km² | — | — |
| Waat Watu Island | Tanimbar Islands | 0.00 km² | — | — |
| Waba Kalektau Island | Raja Ampat | 0.01 km² | — | — |
| Waba Kapatcol Manyani Island | Raja Ampat | 0.00 km² | — | — |
| Waba Nata Tole Island | Raja Ampat | 0.00 km² | — | — |
| Waba Niyefto Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Wabinnawan Genan Island | Raja Ampat | 0.01 km² | — | — |
| Wabinnawan Peley Island | Raja Ampat | 0.09 km² | — | — |
| Wacoke Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Wacoke Fat Island | Raja Ampat | 0.00 km² | — | — |
| Wacoke Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Wacoke Lim Island | Raja Ampat | 0.00 km² | — | — |
| Wacoke Lu Island | Raja Ampat | 0.00 km² | — | — |
| Wacoke Pale Island | Raja Ampat | 0.21 km² | — | 67 m |
| Wacoke Tol Island | Raja Ampat | 0.00 km² | — | — |
| Wacoke Wonom Island | Raja Ampat | 0.00 km² | — | — |
| Waddy Island | Victoria | — | — | 5 m |
| Waddy Island | Victoria | — | — | 2 m |
| Wadidin Island | Aru Islands Regency | 0.61 km² | — | — |
| Wadiewaditemin Island | Fakfak | 0.00 km² | — | — |
| Wadioi Island | Teluk Wondama | 0.00 km² | — | — |
| Wadjijof Selatan Island | Fakfak | 0.00 km² | — | — |
| Wadjijof Utara Island | Fakfak | 0.00 km² | — | — |
| Wafani Palolon Island | Raja Ampat | 0.00 km² | — | — |
| Wafani Pat Island | Raja Ampat | 0.01 km² | — | 12 m |
| Wafani Sawi Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Bayampop Lapalol Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Kapatcol Kacuo Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Yefto Laleltaya Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Yefto Malas Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Yefto Palol Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Yefto Palpalafi Island | Raja Ampat | 0.00 km² | — | — |
| Wafenkalik Yefto Wat Island | Raja Ampat | 0.01 km² | — | — |
| Wafoh Island | Raja Ampat | 0.07 km² | — | 2 m |
| Wagmap Atsa Island | Raja Ampat | 0.01 km² | — | — |
| Wagmap Fat Island | Raja Ampat | 0.03 km² | — | — |
| Wagmap Island | Raja Ampat | 1.79 km² | — | 67 m |
| Wagmap Lu Island | Raja Ampat | 0.00 km² | — | — |
| Wagmap Nikapatcol Kacuo Topalenilap Island | Raja Ampat | 0.00 km² | — | — |
| Wagmap Nikapatcol Pale Yasancao Island | Raja Ampat | 0.00 km² | — | — |
| Wagmap Nikapatcol Totiptaya Island | Raja Ampat | 0.00 km² | — | — |
| Wagmap Nikapatcol Towasarao Island | Raja Ampat | 0.00 km² | — | — |
| Wagmap Niyefpale Tokalekedya Island | Raja Ampat | 0.01 km² | — | — |
| Wagmap Niyefpale Tolalellolya Island | Raja Ampat | 0.00 km² | — | — |
| Wagmap Tol Island | Raja Ampat | 0.00 km² | — | — |
| Waha Island | Southeast Maluku | 0.62 km² | — | 20 m |
| Wahiakahleh Island | Aru Islands Regency | 0.01 km² | — | — |
| Wahialtel Island | Aru Islands Regency | 0.25 km² | — | — |
| Wahianu Island | Aru Islands Regency | 0.00 km² | — | — |
| Wahiatalfel Island | Aru Islands Regency | 0.01 km² | — | — |
| Wahiawilhukifui Island | Aru Islands Regency | 0.00 km² | — | — |
| Wai Pale Island | Raja Ampat | 0.00 km² | — | — |
| Wai-Weer Islet | Queensland | — | — | 10 m |
| Waibo Island | Jayapura | 0.00 km² | — | — |
| Waif Island | Raja Ampat | 0.05 km² | — | — |
| Waifani Island | Raja Ampat | 0.01 km² | — | — |
| Waifani Malass Island | Raja Ampat | 0.01 km² | — | — |
| Waifual Island | Aru Islands Regency | 0.01 km² | — | — |
| Waigeo Island | Raja Ampat | 3,155 km² | 6,000 | 958 m |
| Waigira Island | Aru Islands Regency | 0.00 km² | — | — |
| Waihalu Island | Raja Ampat | 0.01 km² | — | — |
| Waiheke Island | Auckland Region | 92 km² | 8,730 | 231 m |
| Wailagi Lala | Lau | 3 km² | — | — |
| Wailale Island | Raja Ampat | 0.01 km² | — | — |
| Waimo Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Waimo Fat Island | Raja Ampat | 0.00 km² | — | — |
| Waimo Lu Island | Raja Ampat | 0.00 km² | — | — |
| Waimo Tol Island | Raja Ampat | 0.00 km² | — | — |
| Waimunitsub Genan Island | Raja Ampat | 0.06 km² | — | — |
| Waimunitsub Island | Raja Ampat | 0.27 km² | — | — |
| Wainaf Island | Aru Islands Regency | 0.00 km² | — | — |
| Wairaki Island | Southland District | — | — | 22 m |
| Waironi Island | Teluk Wondama | 0.21 km² | — | — |
| Waisak Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Waisak Island | Raja Ampat | 0.01 km² | — | — |
| Waisak Lu Island | Raja Ampat | 0.00 km² | — | — |
| Waisak Tol Island | Raja Ampat | 0.00 km² | — | — |
| Waitani Ganan Island | Raja Ampat | 0.00 km² | — | — |
| Waitani Island | Raja Ampat | 0.01 km² | — | — |
| Waitani Palay Island | Raja Ampat | 0.01 km² | — | — |
| Waitin Besar Island | Fakfak | 0.01 km² | — | — |
| Waitin Kecil Island | Fakfak | 0.01 km² | — | — |
| Waitut Lapo Island | Raja Ampat | 0.14 km² | — | — |
| Wakanjini Island | Aru Islands Regency | 0.17 km² | — | — |
| Wakaryioninuk Island | Raja Ampat | 0.01 km² | — | — |
| Wakat Island | Aru Islands Regency | 0.01 km² | — | — |
| Wakatalis Kapatcol Kitokalekedya Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Kapatcol Tolanamya Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Kapatcol Tolasancaya Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Kapatcol Tololmolo Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Kasusketo Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Lipallahsancau Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Nikapatcol Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Nikapatcol Tolapya Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Niyefo Ganan Tolenatao Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Niyefo Ganan Tonelapja Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Niyefto Palolono Pallahsancuo Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Niyeftote Tololya Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Topale Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Yef Katalisniyef Paletolea Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Yef Tole Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Yef Tolea Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Yef Tonatana Banos Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Yef Topalolonya Island | Raja Ampat | 0.00 km² | — | — |
| Wakatalis Yefto Masos Island | Raja Ampat | 0.00 km² | — | — |
| Wakaya Island | Lomaiviti | 8 km² | — | — |
| Wakbotmalam Island | Raja Ampat | 0.00 km² | — | — |
| Wakde Besar Island | Sarmi | 2.14 km² | — | 20 m |
| Wakde Kecil Island | Sarmi | 0.14 km² | — | — |
| Wakfoi Island | Raja Ampat | 0.01 km² | — | — |
| Wakhawia Island | Aru Islands Regency | 0.00 km² | — | — |
| Waktawor Island | Fakfak | 0.01 km² | — | — |
| Walak Island | Aru Islands Regency | 2.25 km² | — | — |
| Walamah Island | Aru Islands Regency | 296.4 km² | — | — |
| Walbul Island | Aru Islands Regency | 0.71 km² | — | — |
| Waldegrave Island | South Australia | — | — | 26 m |
| Waldegrave Islands | South Australia | — | — | 28 m |
| Walep Yef Sarafudin Island | Raja Ampat | 0.00 km² | — | — |
| Walewawan Island | Tanimbar Islands | 0.20 km² | — | — |
| Wali Island | Aru Islands Regency | 0.04 km² | — | — |
| Walib Ganan Island | Raja Ampat | 0.02 km² | — | — |
| Walib Pale Island | Raja Ampat | 0.67 km² | — | 35 m |
| Walili Island | Raja Ampat | 0.01 km² | — | — |
| Walili Le Island | Raja Ampat | 0.00 km² | — | — |
| Walili Nikapatcol Island | Raja Ampat | 0.00 km² | — | — |
| Walili Niyeftopale Island | Raja Ampat | 0.00 km² | — | — |
| Walioar Island | Tanimbar Islands | 0.01 km² | — | — |
| Waliorar Dal Island | Tanimbar Islands | 0.00 km² | — | — |
| Walir Island | Tual | 22.1 km² | — | 27 m |
| Walis Island | East Sepik Province | 11 km² | — | — |
| Walker Island | Tasmania | 700 km² | — | 19 m |
| Walker Island | Tasmania | 15 km² | — | 1 m |
| Walla Island | Queensland | — | — | 52 m |
| Wallabin Island | South Australia | — | — | 133 m |
| Wallaby Island | Queensland | — | — | 8 m |
| Wallaby Island | Queensland | — | — | 13 m |
| Wallaby Island | Queensland | — | — | 10 m |
| Wallaby Island | Victoria | — | — | 6 m |
| Wallace Island | New South Wales | — | — | 1,154 m |
| Wallace Island | New South Wales | — | — | 4 m |
| Wallace Islet | Queensland | 0.04 km² | — | — |
| Wallamba Island | New South Wales | — | — | 1 m |
| Wallis Island | Mid-Coast | — | — | 7 m |
| Wallpolla Island | Victoria | — | — | 34 m |
| Waloi Island | Raja Ampat | 0.11 km² | — | — |
| Walsh Island | Queensland | — | — | 10 m |
| Walsh Island | New South Wales | — | — | 8 m |
| Walter Island | Queensland | — | — | 59 m |
| Wamao Island | Raja Ampat | 0.06 km² | — | — |
| Wamar Island | Aru Islands Regency | 48.5 km² | — | 19 m |
| Wamari Island | Yapen Islands | 0.76 km² | — | — |
| Wamasinketo Island | Raja Ampat | 0.04 km² | — | — |
| Wambarra Islet | Northern Territory | — | — | 8 m |
| Wamgu Ai Fat Island | Raja Ampat | 0.00 km² | — | — |
| Wamgu Ai Ha Island | Raja Ampat | 0.00 km² | — | — |
| Wamgu Ai Lim Island | Raja Ampat | 0.05 km² | — | — |
| Wamgu Ai Lu Island | Raja Ampat | 0.00 km² | — | — |
| Wamgu Ai Tol Island | Raja Ampat | 0.00 km² | — | — |
| Wamisiru Island | Teluk Wondama | 0.00 km² | — | — |
| Wamori Island | Yapen Islands | 0.09 km² | — | — |
| Wamsoi Island | Biak Numfor | 0.53 km² | — | 40 m |
| Wanagalaiso Island | Raja Ampat | 0.05 km² | — | 6 m |
| Wanalkula Island | Indonesia | 0.69 km² | — | — |
| Wanandief Island | Yapen Islands | 0.29 km² | — | — |
| Wanaponoi Island | Yapen Islands | 0.00 km² | — | — |
| Wandanwandan Selatan Island | Fakfak | 0.00 km² | — | — |
| Wandanwandan Utara Island | Fakfak | 0.00 km² | — | — |
| Wandi Island | Yapen Islands | 0.01 km² | — | — |
| Wangainan Island | New South Wales | — | — | 2 m |
| Wangoindjung Island | Northern Territory | — | — | 11 m |
| Wanim | Milne Bay Province | 1.66 km² | — | 119 m |
| Wanoma | Indonesia | — | — | 63 m |
| Wapdulu Island | Raja Ampat | 0.03 km² | — | — |
| Waponin Island | Fakfak | 0.01 km² | — | — |
| Waponin Kokoi Island | Fakfak | 0.00 km² | — | — |
| Wapupi Island | Teluk Wondama | 0.01 km² | — | — |
| Wapupi Kecil Island | Teluk Wondama | 0.00 km² | — | — |
| War Island | Southeast Maluku | 0.00 km² | — | — |
| Warahire Island | Nabire | 0.02 km² | — | — |
| Warakakket Island | Raja Ampat | 0.01 km² | — | — |
| Warakakket Island | Raja Ampat | 0.01 km² | — | 157 m |
| Warakakket Palolon Island | Raja Ampat | 0.00 km² | — | — |
| Warakakket Pat Island | Raja Ampat | 0.01 km² | — | — |
| Warakuikul Talab Island | Queensland | — | — | 21 m |
| Warangan Island | Aru Islands Regency | 0.06 km² | — | — |
| Warasnam Island | Fakfak | 0.02 km² | — | — |
| Waratah Island | Queensland | — | — | 10 m |
| Warbal Island | Southeast Maluku | 3.73 km² | — | 26 m |
| Ward Islands | South Australia | — | — | 17 m |
| Wardang Island | South Australia | 39.3 km² | — | 18 m |
| Waregah Island | New South Wales | — | — | 1 m |
| Warenuf Island | Yapen Islands | 0.00 km² | — | — |
| Warhu Island | Southeast Maluku | 1.03 km² | — | 15 m |
| Wari Island | Milne Bay Province | 2.27 km² | — | 117 m |
| Waria Island | Aru Islands Regency | 0.04 km² | — | 18 m |
| Waria Lola Island | Aru Islands Regency | 0.07 km² | — | — |
| Warialau Island | Aru Islands Regency | 47.3 km² | — | 49 m |
| Wariami Nus Island | Raja Ampat | 0.00 km² | — | — |
| Warikaf Island | Raja Ampat | 0.01 km² | — | — |
| Warikumandefaf Island | Yapen Islands | 0.01 km² | — | — |
| Waringa Island | New South Wales | — | — | 3 m |
| Warir Island | Raja Ampat | 42.5 km² | — | 20 m |
| Warir Manyanyim Island | Raja Ampat | 0.31 km² | — | — |
| Warir Takektol Island | Raja Ampat | 0.84 km² | — | — |
| Wariyatak Island | Fakfak | 0.01 km² | — | — |
| Warkaket Yef Juaria Island | Raja Ampat | 0.00 km² | — | — |
| Warkaket Yef Kalanmei Island | Raja Ampat | 0.00 km² | — | — |
| Warkaket Yef Kaliskayapa Island | Raja Ampat | 0.00 km² | — | — |
| Warkaket Yef Katit Island | Raja Ampat | 0.00 km² | — | — |
| Warkaket Yef Peti Island | Raja Ampat | 0.00 km² | — | — |
| Warkol Besar Island | Aru Islands Regency | 0.00 km² | — | — |
| Warkol Kecil Island | Aru Islands Regency | 0.00 km² | — | — |
| Warla Island | Aru Islands Regency | 0.00 km² | — | — |
| Warldagawaji Island | Northern Territory | — | — | 9 m |
| Warnawi Island | Northern Territory | — | — | 8 m |
| Warplungplung Island | Fakfak | 2.11 km² | — | — |
| Warrmali Island | Northern Territory | — | — | 10 m |
| Warsin Island | Aru Islands Regency | 0.30 km² | — | — |
| Wartorenkoer Island | Raja Ampat | 1.01 km² | — | — |
| Warwar Island | Fakfak | 0.01 km² | — | — |
| Warwick Island | New South Wales | — | — | 1,205 m |
| Was Island | Fakfak | 0.47 km² | — | 24 m |
| Wasabef Island | Raja Ampat | 0.08 km² | — | — |
| Wasancankaino Nikapatcol Lu Tolefia Island | Raja Ampat | 0.00 km² | — | — |
| Wasancankaino Niyef Kacuo Tolanam Island | Raja Ampat | 0.00 km² | — | — |
| Wasancankaino Niyef Katem Tolol Island | Raja Ampat | 0.00 km² | — | — |
| Wasancankaino Niyef Paltonataya Island | Raja Ampat | 0.01 km² | — | — |
| Wasancankaino Yef Kacuolu Tololya Island | Raja Ampat | 0.00 km² | — | — |
| Waser Island | Aru Islands Regency | 0.04 km² | — | — |
| Wasfunseplay Island | Raja Ampat | 0.04 km² | — | 1 m |
| Wasir Island | Aru Islands Regency | 18.5 km² | — | 55 m |
| Wat Kora Island | Tanimbar Islands | 0.00 km² | — | — |
| Wat Lapo Island | Raja Ampat | 0.00 km² | — | — |
| Wat Thyanat Blawat Island | Tanimbar Islands | 0.00 km² | — | — |
| Wat Thyanat Bubut Island | Tanimbar Islands | 0.00 km² | — | — |
| Wat Thyanat Mou Island | Tanimbar Islands | 0.00 km² | — | — |
| Wat Thyanat Ngewu Island | Tanimbar Islands | 0.00 km² | — | — |
| Wat Thyanat Utara Island | Tanimbar Islands | 0.00 km² | — | — |
| Wat Warat Island | Tanimbar Islands | 0.11 km² | — | 27 m |
| Wataduria Island | Fakfak | 0.00 km² | — | — |
| Wataduria Kecil Island | Fakfak | 0.00 km² | — | — |
| Watanara Island | Tanimbar Islands | 0.03 km² | — | — |
| Wataropop Kapacol Lu Island | Raja Ampat | 0.00 km² | — | — |
| Wataropop Kapacol Tol Island | Raja Ampat | 0.00 km² | — | — |
| Watbabal Island | Eastern Seram | 0.00 km² | — | — |
| Watchman Island / Te Kākāwhakaara | Auckland Region | 60 km² | — | — |
| Water Rat | Tasmania | — | — | 1 m |
| Waterhouse Island | Tasmania | 287 km² | — | 22 m |
| Watluhun Island | Tanimbar Islands | 0.00 km² | — | — |
| Watlus Island | Southeast Maluku | 1.50 km² | — | 28 m |
| Watmomal Island | Tanimbar Islands | 0.00 km² | — | — |
| Watobur Island | Tanimbar Islands | 0.00 km² | — | — |
| Watokmas Island | Southeast Maluku | 0.02 km² | — | 11 m |
| Watom Island | East New Britain Province | 14 km² | 2,000 | — |
| Watoropop Kapatcol Island | Raja Ampat | 0.00 km² | — | — |
| Watraat Dua Island | Tanimbar Islands | 0.00 km² | — | — |
| Watraat Empat Island | Tanimbar Islands | 0.00 km² | — | — |
| Watraat Enam Island | Tanimbar Islands | 0.00 km² | — | — |
| Watraat Lima Island | Tanimbar Islands | 0.00 km² | — | — |
| Watraat Satu Island | Tanimbar Islands | 0.00 km² | — | — |
| Watraat Tiga Island | Tanimbar Islands | 0.00 km² | — | — |
| Watraat Tujuh Island | Tanimbar Islands | 0.00 km² | — | — |
| Watroal Island | Tanimbar Islands | 0.00 km² | — | — |
| Watson Island | Queensland | 0.09 km² | — | 11 m |
| Watson Island | Northern Territory | — | — | 25 m |
| Wattle Island | Victoria | — | — | 18 m |
| Wattwia Island | Tanimbar Islands | 0.00 km² | — | — |
| Wattwia Utara Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Aryatu Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Bela Island | Eastern Seram | 3.81 km² | 1,487 | 137 m |
| Watu Blihir Besar Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Blihir Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Bosar Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Boyawan Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Bweya | Tanimbar Islands | 0.00 km² | — | — |
| Watu Fardid Ndoku | Tanimbar Islands | 0.00 km² | — | — |
| Watu Hiri | Tanimbar Islands | 0.00 km² | — | — |
| Watu Irua Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Kabrengan Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Kat Irua | Tanimbar Islands | 0.00 km² | — | — |
| Watu Kat Isa | Tanimbar Islands | 0.00 km² | — | — |
| Watu Kemar Island | Eastern Seram | 0.00 km² | — | — |
| Watu Liang Island | Eastern Seram | 0.00 km² | — | — |
| Watu Lima Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Malela Besar Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Malela Tengah Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Mesin | Tanimbar Islands | 0.00 km² | — | — |
| Watu Ngirut Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Rangar Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Tarterlera Da | Tanimbar Islands | 0.00 km² | — | — |
| Watu Titir Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Tranan Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Trut Barat Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Trut Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Trut Timur Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Tunat Besar Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Tunat Kecil Island | Tanimbar Islands | 0.00 km² | — | — |
| Watu Wawan Island | Tanimbar Islands | 0.02 km² | — | — |
| Watu Wawan Island | Tanimbar Islands | 0.02 km² | — | 1 m |
| Watu Wawu | Tanimbar Islands | 0.00 km² | — | — |
| Watu Wawu Isa | Tanimbar Islands | 0.00 km² | — | — |
| Watu Yaha | Tanimbar Islands | 0.00 km² | — | — |
| Watu Yanat Blawat | Tanimbar Islands | 0.01 km² | — | — |
| Watwelawawan Island | Tanimbar Islands | 0.00 km² | — | — |
| Watwotar Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Blalawat Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Blawat Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Kabal Island | Tanimbar Islands | 0.01 km² | — | — |
| Watyanat Lamlumur Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Lamlumur Kecil Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Mesin Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Ngavu Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Sakali Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanat Utara Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanatbubut Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyanatnibeu Island | Tanimbar Islands | 0.00 km² | — | — |
| Watyota Island | Tanimbar Islands | 0.00 km² | — | — |
| Waua Islet | Queensland | — | — | 45 m |
| Wauraltee Island | South Australia | — | — | 23 m |
| Wawaldiko Island | Aru Islands Regency | 0.01 km² | — | — |
| Wawaruk Island | Yapen Islands | 0.03 km² | — | — |
| Wawinbabere Island | Teluk Wondama | 0.00 km² | — | — |
| Wawinda Islet | Northern Territory | — | — | 7 m |
| Way Island | Raja Ampat | 0.27 km² | — | 17 m |
| Wayaban Island | Raja Ampat | 0.59 km² | — | 76 m |
| Wayaban Le Island | Raja Ampat | 0.00 km² | — | — |
| Wayaban Lol Island | Raja Ampat | 0.00 km² | — | — |
| Wayaban Yef Noton Island | Raja Ampat | 0.00 km² | — | — |
| Wayaban Yef Saruri Bahalle Island | Raja Ampat | 0.00 km² | — | — |
| Wayabanbatta Les Island | Raja Ampat | 0.00 km² | — | — |
| Wayabanbatta Lol Island | Raja Ampat | 0.00 km² | — | — |
| Wayabanlenbus Island | Raja Ampat | 0.06 km² | — | — |
| Wayakako Island | Aru Islands Regency | 1.90 km² | — | — |
| Wayam Bemuk Island | Raja Ampat | 0.30 km² | — | 18 m |
| Wayam Island | North Waigeo | 0.01 km² | — | — |
| Wayanga Island | Tanimbar Islands | 4.10 km² | — | 25 m |
| Waye Island | Tual | 0.00 km² | — | — |
| Wayel Fat Island | Raja Ampat | 0.02 km² | — | — |
| Wayel Fit Island | Raja Ampat | 0.01 km² | — | — |
| Wayel Island | Raja Ampat | 0.25 km² | — | 17 m |
| Wayel Lafa Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Lafamailu Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Lafamaisa Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Lim Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Lu Island | Raja Ampat | 0.01 km² | — | — |
| Wayel Si Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Tol Island | Raja Ampat | 0.01 km² | — | — |
| Wayel Wal Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Wonom Island | Raja Ampat | 0.07 km² | — | — |
| Wayel Yef Abdul Rauf Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Alimin Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Duris Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Kaluf Tamban Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Kanosol Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Manmenik Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Meten Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Mohau Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Palou Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Rahman Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Sanaumfom Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Saruri Island | Raja Ampat | 0.00 km² | — | — |
| Wayel Yef Taptop Island | Raja Ampat | 0.00 km² | — | — |
| Wayilbatan Island | Raja Ampat | 3.89 km² | — | 138 m |
| Waywantha Island | Northern Territory | — | — | 3 m |
| Weary Island | Queensland | — | — | 200 m |
| Wedge Island | Tasmania | 43 km² | — | — |
| Wedge Island | Mackay Region | — | — | 19 m |
| Wedge Island | Shire of Livingstone | — | — | 27 m |
| Wedge Island | South Australia | — | — | 29 m |
| Wedge Rock | Northern Territory | — | — | 8 m |
| Wednesday Island | Queensland | 8.40 km² | 0 | 31 m |
| Wehindamhiu Island | Aru Islands Regency | 0.00 km² | — | — |
| Wehitai Island | Aru Islands Regency | 0.00 km² | — | — |
| Wehnar Island | Aru Islands Regency | 0.01 km² | — | — |
| Weija Island | Raja Ampat | 0.00 km² | — | — |
| Weijim Ganan Island | Raja Ampat | 0.93 km² | — | — |
| Weijim Pale Island | Raja Ampat | 9.01 km² | — | 17 m |
| Weka Island | Southland Region | — | — | 42 m |
| Weka or Long Island | Southland District | — | — | 88 m |
| Wekouna Reef | Milne Bay Province | — | — | 15 m |
| Welekngaulo Atsa Island | Raja Ampat | 0.00 km² | — | — |
| Welekngaulo Fat Island | Raja Ampat | 0.00 km² | — | — |
| Welekngaulo Lu Island | Raja Ampat | 0.01 km² | — | — |
| Welekngaulo Tol Island | Raja Ampat | 0.00 km² | — | — |
| Wellington Rock | New South Wales | — | — | 8 m |
| Wenang Island | Aru Islands Regency | 0.02 km² | — | — |
| Wenang Ujung Island | Aru Islands Regency | 0.00 km² | — | — |
| Wepi Besar Island | Teluk Wondama | 0.00 km² | — | — |
| Wepi Kecil Island | Teluk Wondama | 0.00 km² | — | — |
| Wermatan Island | Tanimbar Islands | 0.64 km² | — | 13 m |
| Wermin Island | Fakfak | 0.00 km² | — | — |
| Wernifar Barat Island | Fakfak | 0.09 km² | — | — |
| Wernifar Nusapuan Island | Fakfak | 0.00 km² | — | — |
| Wernifar Timur Island | Fakfak | 0.19 km² | — | — |
| Wernifar Utara Island | Fakfak | 0.00 km² | — | — |
| Werpapaya Island | Fakfak | 0.00 km² | — | — |
| Werpati Island | Fakfak | 0.01 km² | — | — |
| Werrang Island | New South Wales | — | — | 1 m |
| Weru Island | Tanimbar Islands | 0.08 km² | — | — |
| Weslu Island | Raja Ampat | 0.38 km² | — | — |
| West Diamond Islet | Queensland | — | — | 6 m |
| West Hill Island | Queensland | — | — | 216 m |
| West Island | South Australia | 10 km² | — | 40 m |
| West Island | Northern Territory | — | — | 31 m |
| West Island | South Australia | — | — | 22 m |
| West Island | Queensland | — | — | 74 m |
| West Island | South Australia | — | — | 19 m |
| West Islet | Northern Territory | — | — | 2 m |
| West Molle Island | Queensland | — | — | 1 m |
| West Pyramid | Tasmania | — | — | 1 m |
| West Side Island | Queensland | — | — | 17 m |
| West Sister Island | Tasmania | — | — | 10 m |
| West Woody Island | Northern Territory | — | — | 6 m |
| Western Rocks | Tasmania | — | — | 165 m |
| Wetak Barat Island | Fakfak | 0.00 km² | — | — |
| Wetak Besar Island | Fakfak | 0.03 km² | — | — |
| Wetak Timur Island | Fakfak | 0.00 km² | — | — |
| Wetang Island | Southwest Maluku | 42.5 km² | — | 102 m |
| Wetin Island | Fakfak | 0.01 km² | — | — |
| Weyat Island | Tanimbar Islands | 0.31 km² | — | — |
| Whakaari / White Island | Bay of Plenty Region | 3.25 km² | 0 | 321 m |
| Whale Island | Queensland | — | — | 14 m |
| Whale Rock | Waikato Region | — | — | 9 m |
| Whanganui Island | Thames-Coromandel District | 2.83 km² | — | — |
| Whangaokeno / East Island | Gisborne District | 0.13 km² | 0 | — |
| Whangara Island | Gisborne District | — | — | 53 m |
| Wharepuaitaha Island | Southland District | — | — | 14 m |
| Wheatley Islet | Northern Territory | — | — | 18 m |
| Wheeler Island | Queensland | — | — | 79 m |
| Wheetmans Island | Tasmania | — | — | 349 m |
| Whisky Island | New South Wales | — | — | 1 m |
| White Island | Dunedin City | — | 0 | — |
| White Islet | Northern Territory | — | — | 21 m |
| White Rock | Tasmania | — | — | 6 m |
| White Rock Island | South Australia | — | — | 3 m |
| Whitsunday Island | Whitsunday Region | 109 km² | 0 | 126 m |
| Whitsunday Islands | Whitsunday Region | 5 km² | 1,759 | 123 m |
| Whyte Island | Queensland | — | — | 2 m |
| Widul Island | Queensland | — | — | 35 m |
| Wier Ai Island | Fakfak | 0.10 km² | — | — |
| Wigleys Island | South Australia | — | — | 10 m |
| Wigram Island | Northern Territory | — | — | 38 m |
| Wigton Island | Queensland | — | — | 8 m |
| Wihia Abilau Island | Aru Islands Regency | 0.03 km² | — | — |
| Wihwawani Island | Aru Islands Regency | 0.00 km² | — | — |
| Wild Cattle Island | Queensland | — | — | 14 m |
| Wild Dog Island | South Australia | — | — | 10 m |
| Wild Duck Island | Queensland | — | — | 19 m |
| Wilkie Island | Queensland | — | — | 13 m |
| Willes Island | Queensland | — | — | 3 m |
| Williams Island | South Australia | — | — | 30 m |
| Williams Island | Victoria | — | — | 126 m |
| Williams Island East | Victoria | — | — | 141 m |
| Willis Island | Queensland | 7.70 km² | — | 9 m |
| Wilmot Island | Tasmania | — | — | 337 m |
| Wilperna Island | South Australia | — | — | 29 m |
| Wilson Island | Queensland | — | — | 12 m |
| Wilson Island | Queensland | — | — | 8 m |
| Wimbledon Island | New South Wales | — | — | 59 m |
| Wimbro Island | Teluk Bintuni | 25.3 km² | — | — |
| Winceby Island | District Council of Tumby Bay | — | — | 11 m |
| Winchelsea Island | East Arnhem Region | — | — | 31 m |
| Windesi Baba Island | Teluk Wondama | 0.01 km² | — | — |
| Windesi Katu Island | Teluk Wondama | 0.01 km² | — | — |
| Windirr Island | Northern Territory | — | — | 1 m |
| Windward Island | New South Wales | — | — | 1,154 m |
| Wirrainbeia Island | Queensland | — | — | 8 m |
| Wirrimbi Island | New South Wales | — | — | 14 m |
| Wirrung Island | New South Wales | — | — | 2 m |
| Witir Island | Southeast Maluku | 8.54 km² | — | 16 m |
| Witt Island | Queensland | — | — | 13 m |
| Witts Island | New South Wales | — | — | 7 m |
| Wogiwog Island | West New Britain Province | — | — | 44 m |
| Woiniwnamaloi Island | Aru Islands Regency | 0.21 km² | — | — |
| Woiniwnamaloi Kecil Island | Aru Islands Regency | 0.03 km² | — | — |
| Woisumi Island | Teluk Wondama | 0.00 km² | — | — |
| Wokai Island | Aru Islands Regency | 164.3 km² | — | 26 m |
| Wokam Island | Aru Islands Regency | 1,604 km² | — | 67 m |
| Wolas Island | Tanimbar Islands | 0.96 km² | — | 9 m |
| Woleai | Yap State | 17 km² | — | — |
| Wollomba Island | New South Wales | — | — | 1 m |
| Wolngarin Island | Queensland | — | — | 4 m |
| Wolo Island | Sorong | 0.39 km² | — | 16 m |
| Wologenan Island | Sorong | 0.03 km² | — | — |
| Wolverine Shoal | Tasmania | — | — | 1 m |
| Womaduri Island | Teluk Wondama | 0.00 km² | — | — |
| Womgin Island | New South Wales | — | — | 49 m |
| Womofre Island | Biak Numfor | 0.00 km² | — | — |
| Wonan Wel Island | Aru Islands Regency | 0.00 km² | — | — |
| Wongermowindi Island | Fakfak | 0.00 km² | — | — |
| Woning Island | Tual | 0.48 km² | — | 9 m |
| Woodlark Island | Milne Bay Province | 874 km² | 3,151 | 240 m |
| Woods Island | Queensland | — | — | 8 m |
| Woods Well Island | South Australia | — | — | 10 m |
| Woody Island | Queensland | 6.20 km² | 0 | 8 m |
| Woody Island | Northern Territory | — | — | 5 m |
| Woody Island | Tasmania | — | — | 16 m |
| Woody Island | Tasmania | — | — | 27 m |
| Woody Island | Tasmania | — | — | 946 m |
| Woody Wallis Island | Queensland | — | — | 10 m |
| Woogoompah Island | Queensland | — | — | 15 m |
| Woolbin Island | New South Wales | — | — | 1 m |
| Woolshed Island | Victoria | — | — | 282 m |
| Wopiwore Island | Yapen Islands | 0.00 km² | — | — |
| Wori Ansus Island | Yapen Islands | 0.15 km² | — | — |
| Wori Papuma Island | Yapen Islands | 0.03 km² | — | — |
| Workington Island | Queensland | — | — | 67 m |
| Worondaundeni Island | Yapen Islands | 0.00 km² | — | — |
| Worthington Island | Queensland | — | — | 18 m |
| Wotho Atoll | Marshall Islands | 4.33 km² | — | 3 m |
| Wotje Atoll | Marshall Islands | 8.18 km² | — | 3 m |
| Wowaran Kapatcol Tokacano Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Kacuo Tiptatole Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Lenatatololya Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Masostololya Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Paleto Lapaleya Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Tolennataya Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Tolenpalyasancopo Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Toyasancopo Island | Raja Ampat | 0.00 km² | — | — |
| Wowaran Nikapatcol Yeflapya Island | Raja Ampat | 0.00 km² | — | — |
| Wowinbori Island | Biak Numfor | 0.00 km² | — | — |
| Wreck Island | Queensland | — | — | 5 m |
| Wright Island | South Australia | — | — | 2 m |
| Wujulakinda Islet | Northern Territory | — | — | 3 m |
| Wulai Island | West New Britain Province | — | — | 15 m |
| Wule Island | Milne Bay Province | 1.03 km² | — | 92 m |
| Wun Peley Island | Raja Ampat | 0.23 km² | — | — |
| Wundi Island | Biak Numfor | 0.75 km² | — | 4 m |
| Wunmiyi Island | Northern Territory | — | — | 12 m |
| Wununuswotar Island | Tanimbar Islands | 0.00 km² | — | — |
| Wurmali Island | Tanimbar Islands | 0.67 km² | — | 56 m |
| Wurrala | New South Wales | — | — | 130 m |
| Wuryaru Island | Tanimbar Islands | 156.5 km² | — | 89 m |
| Wutat Island | Tanimbar Islands | 34.5 km² | — | 98 m |
| Wuthangka Islet | Northern Territory | — | — | 4 m |
| Wuvulu Island | Manus Province | 14 km² | 824 | — |