Mull is a surname. Notable people with the surname include:
Brandon Mull (born 1974), American writer Carter Mull (born 1977), American artist Clay Mull (born 1979), American speed skater Gary Mull (1937–1993), American yacht designer J. Bazzel Mull (1914–2006), American religious broadcaster Jack Mull (born 1943), American baseball player, coach and manager Martin Mull (1943-2024), American actor Pres Mull (1922–2005), American football coach Stephen Mull (born 1958), American diplomat