The international fraternity of Phi Gamma Delta (also known as FIJI) is a collegiate social fraternity with 113 chapters and 18 colonies across the United States and Canada. It was founded at Jefferson College, Pennsylvania, in 1848, and its headquarters are located in Lexington, Kentucky, USA. Phi Gamma Delta is a member of the North-American Interfraternity Conference and, along with the Fraternity of Phi Kappa Psi, forms the Jefferson Duo.