Gargan may refer to:
Edward Gargan (1902–1964), American actor Jack Gargan (politician), chairman of the Reform Party and candidate for the United States House of Representatives Jack Gargan (hurler) (1918–1991), Irish hurler John Gargan (disambiguation) Dan Gargan (born 1982), American soccer player Sam Gargan (footballer) (born 1989), English footballer Sam Gargan (politician) (1948–2025), Canadian politician Mac Gargan, fictional character and most well-known incarnation of Spider-Man villain, the Scorpion
Mount Gargan has been used to describe various mountains said to have been visited by Michael the Archangel: Monte Gargano or San'Angelo, a mountain in Italy Mont Gargan, a mountain in France