Connaughton () is an Irish surname. Notable people with the surname include:
Brian Connaughton (1899–1983), Irish policeman, recipient of the Scott Medal Brian Connaughton (born 1942/43), Irish cyclist Frank Connaughton (1869–1942), American baseball player Gary Connaughton, inter-county Gaelic footballer for Westmeath Harry Connaughton (1905–1969), American football player James L. Connaughton (born 1961), American energy industry lawyer and former environmental advisor Jared Connaughton (born 1985), Canadian sprinter John Connaughton (1949–2022), English former professional football goalkeeper Joseph Connaughton (cricketer) (1918–1944), English cricketer Kyle Connaughton, American chef Mary Z. Connaughton (born 1960), former board member of the Massachusetts Turnpike Authority Pat Connaughton (born 1993), American basketball and baseball player Paul Connaughton Snr (born 1944), Irish former Fine Gael politician Paul Connaughton Jnr (born 1982), Irish Fine Gael politician Richard Connaughton (born 1942), British Army officer and author specialised in military history Sean Connaughton (born 1961), former Secretary of Transportation for the Commonwealth of Virginia Shane Connaughton (born 1941), Irish writer and actor, co-writer of the screenplay for My Left Foot