| Island's Name | Island group(s) | Country/Countries |
|---|
|
| Wabash | Ohio River,  Kentucky |  United States |
| Waderick Wells Cay | Bahamas |  Bahamas |
| Wades | Potomac River,  Maryland | United States |
| Wadmalaw |  South Carolina | United States |
| Waglan | Po Toi Islands,  Hong Kong |  China |
| Waigeo | Raja Ampat Islands |  Indonesia |
| Waiheke | Hauraki Gulf |  New Zealand |
| Wakde | Papua | Indonesia |
| Wake | Wake Island, Pacific Ocean | United States |
| Wakenaam | Essequibo River |  Guyana |
| Walcheren |  Zeeland |  Netherlands |
| Waldron | San Juan Islands,  Washington | United States |
| Wales |  Nunavut |  Canada |
| Walfisch | Bay of Wismar  Mecklenburg-Vorpommern |  Germany |
| Walker Cay | Bahamas | Bahamas |
| Walkers | Horseshoe Lake,  Illinois | United States |
| Wall | Georgian Bay,  Ontario | Canada |
| Wall |  Western Australia |  Australia |
| Wallis |  Wallis and Futuna |  France |
| Walpole | Ontario | Canada |
| Walrus | Pribilof Islands,  Alaska | United States |
| Water Cay | Bahamas,  Turks and Caicos Islands |  United Kingdom |
| Water Cay | Bahamas | Bahamas |
| Water Cay | Lesser Antilles,  U.S. Virgin Islands | United States |
| Watermelon Cay | Lesser Antilles, U.S. Virgin Islands | United States |
| Wangerooge | East Frisian Islands,  Lower Saxony | Germany |
| Warbah | Persian Gulf |  Kuwait |
| Ward |  Rhode Island | United States |
| Ward's | Boston Harbor,  Massachusetts | United States |
| Wards | East River,  New York | United States |
| Warnie Kępy | Oder Lagoon islands |  Poland |
| Washington | Lake Michigan,  Wisconsin | United States |
| Washington | New York | United States |
| Washington |  Minnesota | United States |
| Washington |  Michigan | United States |
| Washington's Landing | Allegheny River,  Pennsylvania | United States |
| Watford |  Bermuda | United Kingdom |
| Watkins | Potomac River, Maryland | United States |
| Watling | Bermuda | United Kingdom |
| Watlings | Bahamas | Bahamas |
| Watson | Biscayne Bay,  Florida | United States |
| Wax Cay | Bahamas | Bahamas |
| Wayland | Thimble Islands,  Connecticut | United States |
| Weatherford Cay | Bahamas | Bahamas |
| Weddell |  Falkland Islands | United Kingdom |
| Weepecket | Elizabeth Islands, Massachusetts | United States |
| Welk Rocks | Lesser Antilles, U.S. Virgin Islands | United States |
| Well Cay | Bahamas | Bahamas |
| Wellesley | Lake Rosseau Ontario | Canada |
| Wellesley | Thousand Islands, St. Lawrence River, New York | United States |
| Wellington Island |  Antártica Chilena Province |  Chile |
| Wells | Ohio River,  West Virginia | United States |
| West Brother | The Brothers, Hong Kong | China |
| West Brother | Islands of San Francisco Bay,  California | United States |
| West Caicos | Bahamas, Turks and Caicos Islands | United Kingdom |
| West Cay | Bahamas | Bahamas |
| West Cay | Leeward Islands of the Lesser Antilles,  Anguilla | United Kingdom |
| West Cay | Lesser Antilles, U.S. Virgin Islands | United States |
| West Crib | Thimble Islands, Connecticut | United States |
| West | Rhode Island | United States |
| West Dog |  British Virgin Islands | United Kingdom |
| West Falkland | Falkland Islands | United Kingdom |
| West Linga |  Shetland Islands | United Kingdom |
| West Point | Falkland Islands | United Kingdom |
| West Reef East Island
(Da Tay A Island) |
Part of the West London Reef, Spratly Islands |
Disputed between:
China,
 Republic of China,
 Vietnam,
 Brunei,
 Philippines, and
 Malaysia
|
| West Sand Spit | Bahamas, Turks and Caicos Islands | United Kingdom |
| West Ship |  Mississippi | United States |
| West Shroud Cay | Bahamas | Bahamas |
| West Sister | Lake Erie,  Ohio | United States |
| West Summerland Key | Florida Keys, Florida | United States |
| West York | Spratly Islands | Disputed between:
China,
Republic of China,
Vietnam,
Brunei,
Philippines, and
Malaysia |
| Westcott | Bermuda | United Kingdom |
| Western | Georgian Bay, Ontario | Canada |
| Western Duck | Lake Huron, Ontario | Canada |
| Westham |  British Columbia | Canada |
| Weston | James Bay, Nunavut | Canada |
| Westport | Mississippi River,  Missouri | United States |
| Westray | The North Isles,  Orkney Islands | United Kingdom |
| Wet Cay | Bahamas | Bahamas |
| Wetar | Maluku Islands | Indonesia |
| Whakaari | Bay of Plenty | New Zealand |
| Whale Cay | Bahamas | Bahamas |
| Whale | Bermuda | United Kingdom |
| Whale | Bay of Plenty | New Zealand |
| Whaelback |  New Hampshire | United States |
| Whalers | Bermuda | United Kingdom |
| Whalsay | Shetland Islands | United Kingdom |
| Whanganui | Hauraki Gulf | New Zealand |
| Wheatland Bar | Willamette River,  Oregon | United States |
| Wheeler | Kanawha River, West Virginia | United States |
| Wheeling | Ohio River, West Virginia | United States |
| Whidbey | Puget Sound, Washington | United States |
| Whistling Cay | Lesser Antilles, U.S. Virgin Islands | United States |
| White Cay | Bahamas | Bahamas |
| White Cay | Bahamas, Turks and Caicos Islands | United Kingdom |
| White | Otago | New Zealand |
| White | Bay of Plenty | New Zealand |
| Whitsunday | Whitsunday Islands | Australia |
| White | Lower Lough Erne, Northern Ireland | United Kingdom |
| White | Nunavut | Canada |
| White | Windward Islands of the Lesser Antilles |  Grenada |
| White | | Antarctica |
| White | Ross Archipelago | Antarctica |
| White | Isles of Shoals, New Hampshire | United States |
| White | Bermuda | United Kingdom |
| White | Bermuda | United Kingdom |
| White Bay Cay | Bahamas | Bahamas |
| White Cloud | Georgian Bay, Ontario | Canada |
| Whitefish | Lake Huron Ontario | Canada |
| White Head |  New Brunswick | Canada |
| Wicked Will | Leeward Islands of the Lesser Antilles |  Antigua and Barbuda |
| Wiegand | Belcher Islands, Nunavut | Canada |
| Wild Horse | Flathead Lake,  Montana | United States |
| Wielki Krzek | Oder Lagoon islands | Poland |
| Wight | British Isles | United Kingdom |
| Wilhelm Island | Svalbard |  Norway |
| Wilkes | Wake Island, Pacific Ocean | United States |
| Willemberg | Lesser Antilles,  Netherlands Antilles | Kingdom of the Netherlands |
| Williams | Tennessee River,  Tennessee | United States |
| Williamson | Ohio River, West Virginia | United States |
| Willingdon | Kochi, Kerala |  India |
| Willow | Willamette River, Oregon | United States |
| Wilmington | Kankakee River, Illinois | United States |
| Wilson Cay | Bahamas | Bahamas |
| Wilson | Bermuda | United Kingdom |
| Wilson | Kanawha River, West Virginia | United States |
| Wiltshires Cay | Bahamas | Bahamas |
| Windermere | Bahamas | Bahamas |
| Windley | Florida Keys, Florida | United States |
| Windsor | Willamette River, Oregon | United States |
| Wiroa |
|
New Zealand |
| Wislow | Fox Islands group of the Aleutian Islands, Alaska | United States |
| Wiszowa Kępa | Oder Lagoon islands | Poland |
| Witten Towhead | Ohio River, West Virginia | United States |
| Wizard | Crater Lake, Oregon | United States |
| Wolfe | Lake Ontario, Ontario | Canada |
| Wolin | Baltic Sea | Poland |
| Wong Wan Chau | Hong Kong | China |
| Wood Cay | Bahamas | Bahamas |
| Woods | Lake Champlain,  Vermont | United States |
| Woolen Dean Cay | Bahamas | Bahamas |
| Wotho Atoll | Ralik Chain |  Marshall Islands |
| Wotje Atoll | | Marshall Islands |
| Wrangel | Chukotka Autonomous Okrug |  Russia |
| Wrangell | Alexander Archipelago, Alaska | United States |
| Wreck | Georgian Bay, Ontario | Canada |
| Wuliaru |
Maluku Islands |
Indonesia |
| Wuvulu | Bismarck Archipelago |  Papua New Guinea |
| Wydrza Kępa | Oder Lagoon islands | Poland |
| Wyre | The North Isles, Orkney Islands | United Kingdom |
