Atanasie Anghel Popa, (? - † 19 August 1713, Alba Iulia) was a Romanian Greek-Catholic bishop of Alba Iulia between 1698 and 1713. He was the successor to Teophilus Seremi in the seat of Mitropoliei Bălgradului (Alba-Iulia). Through his continued efforts, he perfected the union of the Romanian Transylvanians with the Catholic Church.