Polynya (disambiguation)

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
 * Polynia Island, an island in Canada once part of the British Arctic Territories
 * Polynia River, river in Sverdlovsk Oblast, Russia