Amasra is a small Black Sea port town in the Bartin Province, Turkey, formerly known as Amastris.

The town today is much appreciated for its beaches and natural setting, which has made tourism the most important activity for its inhabitants. In 2010 the population was 6,500. Amasra has two islands: the bigger one is called Büyük ada ('Great Island'), the smaller one Tavsan adasi ('Rabbit Island'). It was annexed by the Ottoman Empire after the Siege of Amasra.

With its architectural heritage, Amasra is a member of the Norwich-based European Association of Historic Towns and Regions.

There is a fine medium-sized archaeological museum by the sea with remains from both land and underwater. Of particular interest is a statue of the snake god Glykon, a fraudulent creation of a local entrepreneur during Roman imperial times.