A polynya is a non-linear area of open water surrounded by sea ice.
Polynya may also refer to:
- Polynia (ship), a ship crushed in sea ice in 1891 and commemorated in the song Old Polina
- Kane’s Polynia, an open sea rumored to exist around the North Pole in the 19th century
- Polynia Island, an island in Canada once part of the British Arctic Territories
| This disambiguation page lists articles associated with the title Polynya.
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