The 2018–19 Ekstraklasa (also known as Lotto Ekstraklasa due to its sponsorship by Totalizator Sportowy, Polish lottery)[7] was the 93rd season of the Polish Football Championship, the 85th season of the highest tier domestic division in the Polish football league system since its establishment in 1927 and the 11th season of the Ekstraklasa under its current title.

A total of 16 teams participated, 14 of which competed in the league during the 2017–18 season, while the remaining two were promoted from the 2017–18 I liga.

The defending champions were Legia Warsaw, who won their 13th Polish title the previous season.

Piast Gliwice succeeded Legia, winning its first ever Polish top league title.

Source: 90minut (in Polish)Notes:1: Team played last season in I liga.2: Lech Poznań stadium's stands were closed for spectators during two games.