Hasselmann or Haßelmann is a German surname. Notable people with the surname include:

Britta Haßelmann (born 1961), German politician Joice Hasselmann (born 1978), Brazilian journalist Karl Hasselmann (1883–1966), German cinematographer Klaus Hasselmann (born 1931), German oceanographer and climate modeller Nina Hasselmann (born 1986), German field hockey player Wilhelm Hasselmann (1844–1916), German socialist politician and activist

Variants Variant spellings include Haselman, Hasselman, and Hasselmans.Notable people with such surnames include the below, listed alphabetically by given name. Alphonse Hasselmans (1845–1912), Belgium-born French harpist, composer, and pedagogue Ben Hasselman (1898–1984), Dutch military figure Bill Haselman (born 1966), American baseball player and coach Louis Hasselmans (1878–1957), French cellist and conductor

See also The Hasselmann Painter, ancient Greek vase painter of the mid-5th century BC

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