The Gulf of Anadyr, or Anadyr Bay (Russian: Анадырский залив), is a large bay on the Bering Sea in far northeast Siberia.

It has a total surface area of 200,000 km2 (77,000 sq mi) The bay is roughly rectangular and opens to the southeast.

A long gravel bar runs along the northeast shore for about 45 miles (39 nmi; 72 km) east from Kresta Bay.

The Gulf of Anadyr is covered with ice normally 10 months a year.

This Chukotka Autonomous Okrug location article is a stub.