Haaken is a surname and a given name. Notable people with the name include:
Given name: Haaken Christensen (1924–2008), Norwegian art historian, art collector and gallerist Haaken Hasberg Gran (1870–1955), Norwegian botanist Haaken Gulleson, Swedish painter and workshop leader Haaken C. Mathiesen Jr. (1896–1975), Norwegian businessperson who founded the Norwegian branch of Texaco Haaken C. Mathiesen (1827–1913), Norwegian landowner and businessperson in the forestry sector Haaken L. Mathiesen (1858–1930), Norwegian landowner and businessperson in the forestry sector Haaken Severin Mathiesen (1926–1997), Norwegian landowner and businessperson in the forestry sector
Surname: Jan Haaken (born 1947), American clinical psychologist, documentarian, professor