Świdwie [ˈɕfidvjɛ] (German: Neuendorfer See) is a lake in north-western Poland, and is the site of a nature reserve and a Ramsar site (one of 13 such sites in Poland).

The lake is situated in West Pomeranian Voivodeship (in Police County) at the edge of the Wkrzańska Forest.

It has an area of approximately 8.9 square kilometres (3.4 sq mi).

It is also a Natura 2000 EU Special Protection Area.

This West Pomeranian Voivodeship location article is a stub.