It defeated Volos 4-0 in Athens to win the title after five years.
Steven Zuber, Mijat Gacinovic, Orbelin Pineda and Damian Szymanski scored goals at the Opap Arena.
This is AEK Athens' 13th title in their history.
Iranian international players Ehsan Hajsafi and Milad Mohammadi are members of AEK.