The Ekklesia is Phi Gamma Delta’s biennial convention, held in the summer of even-numbered years. In this governing body, each undergraduate chapter has up to three voting delegates and each graduate chapter may have one voting delegate. The primary business of the Ekklesia is to elect new Archons (board of directors), approve the budget for the upcoming biennium, and amend the Bylaws and Constitution.

Outside of the business conducted by the Ekklesia, there are educational programs and numerous social activities to allow brothers to reconnect with old friends and make new ones.

Phi Gamma Delta’s 178th Ekklesia will be held August 6-9, 2026, in Phoenix, Arizona.