{{other uses}} '''Lassen''' is a Danish and Norwegian patronymic surname meaning "son of Lars" (equivalent of Laurentius), and thus a parallel form of the more common surname Larsen. Notable people with the surname include:
* Anders Lassen (1920–1945), Danish recipient of the British Victoria Cross * Christian Lassen (1800-1876), Norwegian-German orientalist * Christian Riese Lassen, American artist known for marine art * Clyde Everett Lassen, United States Navy aviator and Medal of Honor recipient * Eduard Lassen, Belgian composer * Erik Sætter-Lassen (1892–1966), Danish sport shooter * Georg Lassen, German U-boat captain * Hartvig Lassen (1824–1897), Norwegian editor and literary historian * Henrik Andreas Zetlitz Lassen, Norwegian politician * Inger Lassen (1911–1957), Danish actress * Jean Elisabeth Lassen, Canadian weightlifter * Justin Lassen, American composer, producer, multi-instrumentalist and remixer * Leigh Lassen, American actress * Leo Lassen (1899–1975), American baseball announcer * Niels A. Lassen (1926–1997), Danish medical researcher * Peter Lassen, Danish-American rancher, prospector and explorer * Peter Lassen (footballer), Danish football player * Werner Lassen, Namibian golfer
'''Lassen''' may also refer to Lassen Peak, located in Lassen Volcanic National Park, a national park in the United States.
==See also== *Larsen (disambiguation) *Larson (disambiguation)
{{surname|Lassen}}
Category:Danish-language surnames Category:Norwegian-language surnames Category:Patronymic surnames