Hassell, also von Hassell, is an English and German surname. Notable people with the surname include the following:
Albert Young Hassell (1841-1918), Australian pastoralist and politician
Bill Hassell (born 1943), Australian former politician
Bobby Hassell (born 1980), English footballer with Mansfield Town and Barnsley
Gerald Hassell (born 1952), American banker
John Hassell (artist) (c. 1767 – 1825), English artist
John Hassell (settler) (1788-1883), Australian pastoralist
Jon Hassell (born 1937), American trumpet player and composer
Leroy R. Hassell, Sr. (1955–2011), American judge; first African-American Chief Justice of Virginia
Michael Hassell (born 1942), a British biologist, noted for his work in population ecology, especially in insects
Randall G. Hassell, American karate expert
Trenton Hassell (born 1979), American basketball player
Ulrich von Hassell (1881–1944), German diplomat; executed for his participation in the 20 July assassination plot against Hitler
