The 2015–16 I liga is the 8th season of the Polish I liga under its current title, and the 68th season of the second highest division in the Polish football league system since its establishment in 1949.

The league is operated by the Polish Football Association (PZPN).

After the 19th matchday the league will be on winter break between 6 December 2015 and 3 March 2016.

[3] According to the competition rules, all clubs are required to field at least one youth player (born in 1995 or later and Polish or trained in Poland) in every game (except for the times when the only youth player on the roster is sent off or unable to continue playing).

[10] On 9 June 2016 Zawisza Bydgoszcz did not receive a license for the 2016–17 season, thus relegation play-off between the 15th-placed team of I liga (MKS Kluczbork) and the 4th-placed team of II liga (Wisła Puławy) was not held and both will play in the 2016–17 I liga.