The I liga, officially known as Orlen I liga due to its sponsorship by Orlen, is the second tier of women's football league competition in Poland. It is organised and administered by the Polish Football Association (PZPN).
The league consists of a single group of twelve teams who play a double round-robin tournament, each team playing twice against each opponent, home and away. The teams who finish first and second earn a promotion to Ekstraliga, while the teams who finish in eleventh and twelfth are relegated to II liga.
The following teams compete in the I liga as of the 2025âÂÂ26 season, according to the official season calendar.
The following teams compete in the I liga as of the 2024âÂÂ25 season, according to the official season calendar.