Gallagher may refer to:
Places United States Gallagher Township, Pennsylvania Gallagher, West Virginia, an unincorporated place
People Gallagher (surname) Gallagher (comedian), stage name of Leo Anthony Gallagher Jr. Gallagher family, Irish clan
Other Arthur J. Gallagher & Co., American insurance brokerage The Gallagher Index, in political science The Gallagher Group (UK), construction and quarrying firm "Gallagher" (Space Ghost Coast to Coast), a television episode
See also Gallager (disambiguation) Gallaher (disambiguation) Gallacher Goligher Justice Gallagher (disambiguation)