Cosgrove

Cosgrove is a surname of Irish origin. It is believed to have originated from the Gaelic phrase “cúig óbhrais”, meaning “five branches”. The name is most commonly found in the province of Connacht in Ireland. Notable individuals with the surname Cosgrove include former U.S. Army General and Chairman of the Joint Chiefs of Staff Martin E. Dempsey, and actor Jack Cosgrove. The Cosgrove coat of arms features a gold shield with five green branches, representing the name’s Gaelic origins.