Catlett is a surname. Notable people with the surname include:
Buddy Catlett (1933–2014), American jazz saxophonist Charlie Catlett (born 1960), American computer scientist Elizabeth Catlett (1915–2012), African-American graphic artist and sculptor Gale Catlett (born 1940), American basketball coach John Catlett (fl. from 2010), American politician Juan Mora Catlett (born 1939), Mexican film and documentary director Kyle Catlett (born 2002), American actor Mary Jo Catlett (born 1938), American actress and comedian Sid Catlett (1910–1951), American jazz drummer Walter Catlett (1889–1960), American actor
See also George Catlett Marshall Jr. (1880–1959), American statesman and soldier