Havmanden-class submarine may refer to:
- Havmanden-class submarine (1911), a class of submarines built for the Royal Danish Navy from 1911 to 1914
- Havmanden-class submarine (Austria-Hungary) or U-20-class submarine, a class of submarines built for the Austro-Hungarian Navy during World War I
- Havmanden-class submarine (1938), a ship class of World War II
This disambiguation page lists articles associated with the title Havmanden-class submarine.
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