Ostvorpommern was a Kreis (district) in the eastern part of Mecklenburg-Vorpommern, Germany. The district was created on June 12, 1994 by merging the former districts of Anklam, Greifswald and Wolgast. It was merged into Vorpommern-Greifswald on 4 September 2011.
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.