The 1978 Greek Cup final was the 34th final of the Greek Cup. The match took place on 4 June 1978 at Karaiskakis Stadium. The contesting teams were AEK Athens and PAOK. It was AEK Athens' tenth Greek Cup final in their 54 years of existence and PAOK's tenth Greek Cup final and second consecutive in their 52-year history. With their conquest of the Cup, AEK Athens achieved the first domestic double after 39 years and the second in their history.