The I liga, officially known as Orlen I liga due to its sponsorship by Orlen,[2] is the second tier of women's football league competition in Poland.

[3] It is organised and administered by the Polish Football Association (PZPN).

[4] 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.

[6] This article about a Polish association football competition is a stub.