Michael or Mike Gallagher may refer to:
Politics Michael Gallagher (academic) (born 1951), British political scientist at Trinity College, Dublin, inventor of the Gallagher Index Michael Gallagher (British politician) (1934–2015), British MEP 1979–1984 Michael Gallagher (political advisor) (born 1964), American presidential adviser and president and CEO of the Entertainment Software Association Mike Gallacher (born 1961), Australian politician Mike Gallagher (American politician) (born 1984), Member of U.S. House of Representatives from Wisconsin's 8th congressional district Mike Gallagher (political commentator) (born 1960), American radio host and conservative political commentator
Sports Michael Gallagher (Australian footballer) (born 1966), Australian rules footballer Michael Gallagher (cyclist) (born 1978), Australian Paralympic cyclist Mike Gallagher (footballer) (died 1984), Irish association football player (Hibernian FC) Mike Gallagher (skier) (1941–2013), American cross-country skier
Arts and media Michael Gallagher (filmmaker) (born 1988), American filmmaker Michael Gallagher (guitarist) (fl. 1994–2010), ex-guitarist of the American band Isis Michael Gallagher (journalist) (born 1958), American journalist Michael Gallagher (postman and prognosticator) (fl. 2007–2015), Irish amateur weather forecaster Michael Gallagher (translator) (born 1930), American translator of Japanese literature Michael Gallagher (writer) (born 1951), American comic book and satire writer Michael B. Gallagher (born 1945), American painter Michael J. Gallagher (artist), American artist Mick Gallagher (born 1945), British keyboardist Michael J. Gallagher, writer/director of the 2016 film The Thinning
Others Michael Gallagher (bishop) (1866–1937), American bishop Michael C. Gallagher (1943–2023), American academic administrator Michael R. Gallagher (retired 2004), American chief executive Michael Gallagher, played by Paul Newman in the 1981 American drama Absence of Malice Michael Gallagher, Scottish man involved in the Heathrow mortar attacks
See also Gallagher (surname), a surname (including a list of people with the name)