The Gau Pomerania (German: Gau Pommern) was an administrative division of Nazi Germany from 1933 to 1945 in the Prussian province of Pomerania. Before that, from 1931 to 1933, it was the regional subdivision of the Nazi Party in that area. Most of the Gau became part of Poland after the Second World War while the remainder became part of what would become East Germany.