A list of tundra ecoregions from the World Wide Fund for Nature (WWF) includes:
{| class="wikitable"
|-
! colspan=2 | Antarctic realm
|-
| Adelie Land tundra
| Adélie Land
|-
| Central South Antarctic Peninsula tundra
| Antarctic Peninsula
|-
| Dronning Maud Land tundra
| Queen Maud Land
|-
| East Antarctic tundra
| Eastern Antarctica
|-
| Ellsworth Land tundra
| Ellsworth Land
|-
| Ellsworth Mountains tundra
| Ellsworth Mountains
|-
| Enderby Land tundra
| Enderby Land
|-
| Marie Byrd Land tundra
| Marie Byrd Land
|-
| North Victoria Land tundra
| Victoria Land
|-
| Northeast Antarctic Peninsula tundra
| Antarctic Peninsula
|-
| Northwest Antarctic Peninsula tundra
| Antarctic Peninsula
|-
| Prince Charles Mountains tundra
| Prince Charles Mountains
|-
| Scotia Sea Islands tundra
| South Georgia and the South Sandwich Islands, South Shetland Islands, Bouvet Island
|-
| South Antarctic Peninsula tundra
| Antarctic Peninsula
|-
| South Orkney Islands tundra
| South Orkney Islands
|-
| South Victoria Land tundra
| Victoria Land
|-
| Southern Indian Ocean Islands tundra
| Crozet Islands, Prince Edward Islands, Heard Island, Kerguelen Islands, McDonald Islands
|-
| Transantarctic Mountains tundra
| Transantarctic Mountains
|-
! colspan=2 | Australasian realm
|-
| Antipodes Subantarctic Islands tundra
| Australia, New Zealand
|-
! colspan=2 | Nearctic realm
|-
| Alaska–St. Elias Range tundra
| Canada, United States
|-
| Aleutian Islands tundra
| United States
|-
| Arctic coastal tundra
| Canada, United States
|-
| Arctic foothills tundra
| Canada, United States
|-
| Baffin coastal tundra
| Canada
|-
| Beringia lowland tundra
| United States
|-
| Beringia upland tundra
| United States
|-
| Brooks–British Range tundra
| Canada, United States
|-
| Davis Highlands tundra
| Canada
|-
| High Arctic tundra
| Canada
|-
| Interior Yukon–Alaska alpine tundra
| Canada, United States
|-
| Kalaallit Nunaat high arctic tundra
| Greenland
|-
| Kalaallit Nunaat low arctic tundra
| Greenland
|-
| Low Arctic tundra
| Canada
|-
| Middle Arctic tundra
| Canada
|-
| Ogilvie–MacKenzie alpine tundra
| Canada, United States
|-
| Pacific Coastal Mountain icefields and tundra
| Canada<br> United States
|-
| Torngat Mountain tundra
| Canada
|-
! colspan=2 | Palearctic realm
|-
| Arctic desert
| Russia
|-
| Bering tundra
| Russia
|-
| Cherskii–Kolyma mountain tundra
| Russia
|-
| Chukchi Peninsula tundra
| Russia
|-
| Kamchatka mountain tundra and forest tundra
| Russia
|-
| Kola Peninsula tundra
| Norway<br>Russia
|-
| Northeast Siberian coastal tundra
| Russia
|-
| Northwest Russian–Novaya Zemlya tundra
| Russia
|-
| Novosibirsk Islands arctic desert
| Russia
|-
| Scandinavian montane birch forest and grasslands
| Finland, Norway, Sweden, Russia
|-
| Taimyr–Central Siberian tundra
| Russia
|-
| Trans-Baikal Bald Mountain tundra
| Russia
|-
| Wrangel Island Arctic desert
| Russia
|-
| Yamalagydanskaja tundra
| Russia
|}