Hartigan is a surname. Notable people with the surname include:
Bernie Hartigan (born 1944), hurlerBrent Hartigan (born 1985), football playerChad Hartigan (born 1982), filmmaker and actorCharles Conway Hartigan (1882–1944), Medal of Honor recipientDavid James Hartigan (1887–unknown), politicianGerald Hartigan (1884–1955), South African cricketerGrace Hartigan (1922–2008), painterHenry Hartigan (1826–1886), Victoria Cross recipientJames Hartigan (born 1975), journalist and broadcasterJoan Hartigan (1912–2000), tennis playerJohn Hartigan, fictional characterJohn Patrick Hartigan (1887–1968), juristMark Hartigan (born 1977), ice hockey playerMercy Hartigan, fictional characterNeil Hartigan (born 1938), politicianPamela Hartigan, businesswomanPat Hartigan (actor) (1881–1951), actor and directorPat Hartigan (born 1950), hurlerPatrick Joseph Hartigan (1878–1952), priestRoger Hartigan (1879–1958), cricketer