Kelsall is a surname, possibly derived from the English village of the same name. Notable people with the surname include:
Conner Kelsall (born 1999), English professional boxer Freda Kelsall (born 1938), an English scriptwriter, theatre director and former teacher Frederick Kelsall (1906–1931), an English rugby league player John Kelsall (1947–1986), an English composer Karen Kelsall (born 1962), a Canadian gymnast, dancer, and chiropractor Moultrie Kelsall (1901–1980), a Scottish actor Phil Kelsall (born 1956), an English organist Robert Kelsall (born 1946), an English cricketer Sam Kelsall (born 1993), an English cricketer Thomas Forbes Kelsall (1799–1872), an English lawyer and literary figure