1977–78 Alpha Ethniki
The 1977–78 Alpha Ethniki was the 42nd season of the highest football league of Greece. The season began on 11 September 1977 and ended on 28 May 1978. AEK Athens won their sixth Greek title and their first one in seven years.
The point system was: Win: 2 points - Draw: 1 point.
Teams
| Promoted from 1976–77 Beta Ethniki | Relegated from 1976–77 Alpha Ethniki |
| Egaleo Veria | Panetolikos Atromitos |
League table
Top scorers
| Rank | Player | Club | Goals |
| 1 |  |oldAttendancesAEK Athens drew the highest average home attendance in the 1977–78 Alpha Ethniki. |