Back Deutscher Minenräumdienst German Administration allemande du déminage French Den tyske mineryddingstjenesten NB องค์การกวาดทุ่นระเบิดเยอรมัน Thai Німецька адміністрація з розмінування Ukrainian 德國掃雷局 Chinese
| German Mine Sweeping Administration | |
|---|---|
| Deutscher Minenräumdienst | |
 The signal pennant "8" was used as a identification flag on GMSA vessels | |
| Active | 21 June 1945 – 31 December 1947 |
| Country |  Allied-occupied Germany |
| Role | Minesweeping |
| Size | 27,000 men 300 vessels |
The German Mine Sweeping Administration (GMSA) (German: Deutscher Minenräumdienst) was an organisation formed by the Allies from former crews and vessels of the Nazi Germany's Kriegsmarine for the purpose of mine sweeping after the Second World War, predominantly in the North Sea and Baltic Sea, which existed from June 1945 to January 1948.