| Competition: | Alpha Ethniki |
| Season: | 1969–70 |
| Winners: | Panathinaikos 10th Greek title |
| Relegated: | Vyzas Olympiacos Volos Olympiakos Nicosia Panachaiki |
| Continentalcup1: | European Cup |
| Continentalcup1 Qualifiers: | Panathinaikos |
| Continentalcup2: | Cup Winners' Cup |
| Continentalcup2 Qualifiers: | Aris |
| Continentalcup3: | Inter-Cities Fairs Cup |
| Continentalcup3 Qualifiers: | AEK Athens PAOK |
| League Topscorer: | Antonis Antoniadis (25 goals) |
| Matches: | 306 |
| Total Goals: | 697 |
| Prevseason: | 1968–69 |
| Nextseason: | 1970–71 |
The 1969–70 Alpha Ethniki was the 34th season of the highest football league of Greece. The season began on 21 September 1969 and ended on 10 June 1970. Panathinaikos won their second consecutive and tenth Greek title.
The point system was: Win: 3 points - Draw: 2 points - Loss: 1 point.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | Antonis Antoniadis | Panathinaikos | 25 |
| 2 | Mimis Papaioannou | AEK Athens | 18 |
| 3 | Georgios Dedes | Panionios | 17 |
| Stavros Sarafis | PAOK | ||
| Nikos Gioutsos | Olympiacos | ||
| 6 | Alekos Alexiadis | Aris | 15 |
| Michalis Kritikopoulos | Ethnikos Piraeus | ||
| 8 | Sakis Kouvas | Vyzas | 14 |
| Stamatis Vourdamis | Proodeftiki | ||
| 10 | Panagiotis Ventouris | AEK Athens | 12 |
| Kostas Nikolaidis | AEK Athens |