Kellett is a surname. Notable people with the surname include:
Al Kellett (1901–1960), relief pitcher in US Major League Baseball Bob Kellett (1927–2012), English film director, film producer and screenwriter Brian Kellett, rugby league footballer of the 1980s (son of Cyril Kellett) Cyril Kellett (1937–1993), English rugby league footballer of the 1950s, 1960s and 1970s (father of Brian Kellett) Dave Kellett, American cartoonist Edward Kellett (New Zealand politician) (1865–1922), New Zealand Member of Parliament for Dunedin North Edward Orlando Kellett (died 1943), British Member of Parliament and British Army officer Edward Kellett-Bowman (born 1931), British business and management consultant Dame Elaine Kellett-Bowman (1923–2014), British Conservative politician Gloria Calderon Kellett, American writer and actress Sir Henry Kellett (1806–1875), British naval officer and explorer James Kellett (born 1998), British racing driver Ken Kellett (born 1953), English rugby league footballer of the 1970s and 1980s Les Kellett (1915–2002), English professional wrestler Red Kellett (1909–1970), President and General Manager of the 'Baltimore Colts' American football team Ronald Gustave Kellett (1909–1998), Royal Air Force pilot in the Battle of Britain