Captain Gallagher (died 1818) was an Irish highwayman who, as one of the later Irish Rapparees (guerrillas), led a bandit group in the hills of the Irish countryside, armed with a blunderbuss, of the day, during the late 18th and early 19th century.Born in Bonniconlon, County Mayo he lived with his aunt in Derryronane, Swinford for much of his early life and raised near the woods of Barnalyra.