1976–77 Ekstraklasa
| Season | 1976–77 |
|---|---|
| Dates | 21 August 1976 – 25 May 1977 |
| Champions | Śląsk Wrocław (1st title) |
| Relegated | GKS Tychy ROW Rybnik |
| European Cup | Śląsk Wrocław |
| Cup Winners' Cup | Zagłębie Sosnowiec |
| UEFA Cup | Widzew Łódź Górnik Zabrze Odra Opole (EC'77) |
| Matches played | 240 |
| Goals scored | 578 (2.41 per match) |
| Top goalscorer | Włodzimierz Mazur (17 goals) |
| Biggest home win | Odra 7–1 Lech |
| Biggest away win | Pogoń 1–5 Zagłębie |
| Highest scoring | Odra 7–1 Lech Widzew 4–4 Pogoń |
| Highest attendance | 40,000 |
| Total attendance | 3,445,920 |
| Average attendance | 14,358 3.8% |
← 1975–76 1977–78 → | |
The 1976–77 I liga was the 51st season of the Polish Football Championship and the 43rd season of the I liga, the top Polish professional league for association football clubs, since its establishment in 1927. The league was operated by the Polish Football Association (PZPN).
The champions were Śląsk Wrocław, who won their 1st Polish title.