The 2018–19 I liga (currently named Fortuna I liga due to sponsorship reasons) was the 11th season of the Polish I liga under its current title, and the 71st season of the second highest division in the Polish football league system since its establishment in 1949. The league was operated by the PZPN. The league was contested by 18 teams. The season was played in a round-robin tournament. The season started on 20 July 2018 and will conclude on 19 May 2019.
Changes from last season
The following teams have changed division since the 2017–18 season.
To I liga
Relegated from Ekstraklasa
Bruk-Bet Termalica Nieciecza
Sandecja Nowy Sącz
Promoted from II liga
GKS Jastrzębie
ŁKS Łódź
Warta Poznań
Garbarnia Kraków
From I liga
Promoted to Ekstraklasa
Miedź Legnica
Zagłębie Sosnowiec
Relegated to II liga
Pogoń Siedlce
Górnik Łęczna
Olimpia Grudziądz
Ruch Chorzów
Team overview
Stadiums and locations
Garbarnia Kraków played their home games in Stadion im. Henryka Reymana until their home ground (Stadion Garbarni) fulfills license requirements.