John Horgan may refer to:
- John Horgan (Australian politician) (1834–1907), Australian politician, Western Australia MLC;
- John Horgan (Canadian politician), Canadian politician, British Columbia NDP MLA
- John Horgan (American journalist) (born 1953), American science journalist
- John Horgan (political psychologist) (born 1974), Irish political psychologist
- John G. Horgan (1871–1921), billards
- John Horgan (academic) (born 1940), Irish Press Ombudsman, former journalist, Labour Party politician and professor
- John Horgan (hurler) (born 1950), former Irish sportsperson who played hurling with Cork
- John Horgan (Irish nationalist) (1881–1967), Irish politician from Cork
- John Horgan (Irish politician) (1876–1955), Irish politician from Cork
Famous quotes containing the words john and/or horgan:
“The origin of storms is not in clouds,
our lightning strikes when the earth rises,
spillways free authentic power:
dead John Brown’s body walking from a tunnel
to break the armored and concluded mind.”
—Muriel Rukeyser (1913–1980)
“Irony differentiates. Cynicism never does.”
—Paul Horgan (b. 1903)