Hasse may refer to:
People with the surname Hasse:
- Clara H. Hasse (1880–1926), American botanist
- Johann Adolph Hasse (1699–1783), German composer
- Helmut Hasse (1898–1979), German mathematician
- Henry Hasse (1913–1977), US writer of science fiction
- Peter Hasse (c. 1585–1640), German organist and composer
People with the given name or nickname Hasse:
- Hans Alfredson (b.1931), a Swedish actor, film director, writer and comedian
- Hans Backe (b.1952), a Swedish football manager
- Hasse Borg (b.1953), a Swedish footballer
- Hasse Börjes (b.1948), a Swedish speed skater
- Hasse Ekman (1915-2004), a Swedish film director and actor
- Hans Wind (1919–1995), a Finnish flying ace
Other:
- In mathematics:
- Hasse bound, on the number of points on an elliptic curve
- Hasse diagram, a diagram used in set theory