| Competition: | Alpha Ethniki |
| Season: | 1966–67 |
| Winners: | Olympiacos 17th Greek title |
| Relegated: | Trikala |
| Continentalcup1: | European Cup |
| Continentalcup1 Qualifiers: | Olympiacos |
| Continentalcup2: | Cup Winners' Cup |
| Continentalcup2 Qualifiers: | Panathinaikos |
| Continentalcup3: | Inter-Cities Fairs Cup |
| Continentalcup3 Qualifiers: | PAOK |
| League Topscorer: | Giorgos Sideris (24 goals) |
| Matches: | 240 |
| Total Goals: | 586 |
| Prevseason: | 1965–66 |
| Nextseason: | 1967–68 |
The 1966–67 Alpha Ethniki was the 31st season of the highest football league of Greece. The season began on 23 October 1966 and ended on 18 June 1967. Olympiacos won their second consecutive and 17th Greek title.
The point system was: Win: 3 points - Draw: 2 points - Loss: 1 point.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | Giorgos Sideris | Olympiacos | 24 |
| 2 | Vasilis Kyriakou | Apollon Athens | 21 |
| 3 | Sakis Kouvas | Vyzas | 15 |
| Giannis Frantzis | Proodeftiki | ||
| 5 | Georgios Dedes | Panionios | 14 |
| 6 | Panagiotis Ventouris | AEK Athens | 13 |
| 7 | Alekos Alexiadis | Aris | 12 |
| Giannis Kalaitzidis | Panathinaikos |