Ostmark Danzig was a German association football club from the city of Danzig, West Prussia (today Gdańsk, Poland).

September 1909,[1] the club was notable only for its advance to the regional first division Baltenverband final in 1910–11.

After receiving a quarterfinal bye, the team beat SV Marienwerder before losing the championship match 4–2 to Lituania Tilsit.

[2] The team disappeared following World War II when the city became part of Poland.

This article about a German football club is a stub.