| Season: | 2010–11 |
| League Topscorer: | Charles Nwaogu (20 goals) |
| Biggest Home Win: | Piast 5–0 GKP (23 October 2010) |
| Biggest Away Win: | Katowice 1–6 Podbeskidzie (28 August 2010) |
| Highest Scoring: | Odra 3–6 ŁKS (21 May 2011) |
| Matches: | 306 |
| Total Goals: | 750 |
| Longest Wins: | ŁKS Łódź (7 games) |
| Longest Unbeaten: | ŁKS Łódź Piast Gliwice (13 games) |
| Longest Winless: | GKP Gorzów Wielkopolski (10 games) |
| Longest Losses: | Dolcan Ząbki (8 games) |
| Highest Attendance: | 19,000 Warta 2–1 Katowice (20 March 2011) |
| Lowest Attendance: | 300 Górnik P. 1–2 Flota (20 May 2011) |
| Average Attendance: | 2,061 34.8%[1] |
| Nextseason: | 2011–12 |
The 2010–11 I liga was the 63rd season of the second tier domestic division in the Polish football league system since its establishment in 1949 and the 3rd season of the Polish I liga under its current title. The league was operated by the Polish Football Association (PZPN).
The league is contested by 18 teams who competing for promotion to the 2011–12 Ekstraklasa. The regular season was played in a round-robin tournament. The champions and runners-up would receive promotion. The bottom four teams were automatically demoted to the II liga.
Relegated from 2009–10 Ekstraklasa:
2009–10 I liga teams remaining in the league:
Promoted from 2009–10 II liga:
| Rank | Player | Club | Goals[2] |
|---|---|---|---|
| 1 | Charles Nwaogu | Flota Świnoujście | 20 |
| 2 |  Arkadiusz Aleksander | Sandecja Nowy Sącz | 15 |
| 3 | Marcin Mięciel | ŁKS Łódź | 13 |
| 4 | Adam Cieśliński | Podbeskidzie Bielsko-Biała | 12 |
| 5 | Emil Drozdowicz | GKP Gorzów Wielkopolski | 11 |
| Łukasz Cichos | LKS Nieciecza | ||
| Jakub Kosecki | ŁKS Łódź | ||
| 8 | Zbigniew Zakrzewski | Warta Poznań | 10 |
| Jakub Biskup | Piast Gliwice | ||
| Andrzej Rybski | LKS Nieciecza |