The 2014–15 Ekstraklasa (also known as T-Mobile Ekstraklasa due to its sponsorship by T-Mobile Polska) was the 81st season of the highest level of football leagues in the Polish football league system since its establishment in 1927.

A total of 16 teams are participating, 14 of which competed in the league during the 2013–14 season, while the remaining two were promoted from the I Liga.

Promotion and relegation as usual was determined by the position in the table from prior season.

Widzew Łódź and Zagłębie Lubin finished in 15th and 16th place, respectively, and were relegated to the Polish First League as a result.

GKS Bełchatów and Górnik Łęczna finished 1st and 2nd, respectively, in the I Liga gained promotion.