Faugh-a-Ballagh (foaled 1841 in Ireland) was a Thoroughbred racehorse. A brother to Birdcatcher, Faugh-a-Ballagh was sold to E. J. Erwin in 1842. He ran once as a two-year-old at the Doncaster's Champagne Stakes, finishing third to The Cure and Sorella. He then began his three-year-old season as the first Irish-bred horse to win the St. Leger Stakes, then beat Corranna in a match race. He won the Grand Duke Michael Stakes, then the Cesarewitch, and came second to Evenus at the Cambridgeshire.