Ostvorpommern was a Kreis (district) in the eastern part of Mecklenburg-Western Pomerania, Germany.

Neighboring districts were (from east clockwise) Uecker-Randow, Mecklenburg-Strelitz, Demmin and Nordvorpommern.

The Hanseatic city of Greifswald was enclosed by the district, but did not belong to it.

Ostvorpommern District was established on June 12, 1994 by merging the former districts of Anklam, Greifswald and Wolgast.

The subdivisions of the district were (situation August 2011):