| Competition: | III liga |
| Season: | 2021–22 |
| Winners: | Polonia Warsaw Kotwica Kołobrzeg Zagłębie Lubin II Siarka Tarnobrzeg |
| Matches: | 1244 |
| Total Goals: | 3826 |
| League Topscorer: | Wojciech Białek (25 goals)[1] |
| Prevseason: | 2020–21 |
| Nextseason: | 2022–23 |
The 2021–22 III liga season was the 14th edition of the fourth tier domestic division in the Polish football league system since its establishment in 2008 under its current title (III liga) and the 6th season under its current league division format.[2] The league was operated by the Polish Football Association (PZPN).
The competition was contested by 73 clubs split geographically across 4 groups, with the winners of each group gaining promotion to the II liga. The season was played in a round-robin tournament. It began in August 2021 and ended in June 2022. The teams included semi-professional clubs (although a few are professional) and the reserve teams of professional clubs.
73 teams were divided into four groups according to geographical criteria:[2]
Since 2021–22 season each group of III liga was operated by Polish Football Association (PZPN), not a different voivodship football association.
The following teams have changed division since the 2020–21 season.
| Relegated from 2020–21 II liga | Olimpia Grudziądz Błękitni Stargard | Promoted from 2020–21 IV liga | Group 1 ŁKS Łódź II Pilica Białobrzegi Wissa Szczuczyn Mamry Giżycko[3] | Group 2 Zawisza Bydgoszcz Stolem Gniewino Pogoń Nowe Skalmierzyce Kluczevia Stargard[4] | Group 3 Karkonosze Jelenia Góra Carina Gubin Odra Wodzisław Śląski[5] | Group 4 Tomasovia Tomaszów Lubelski Unia Tarnów Korona Rzeszów Czarni Połaniec[6] |
|---|
| Promoted to 2021–22 II liga | Pogoń Grodzisk Mazowiecki Radunia Stężyca Ruch Chorzów Wisła Puławy | Relegated to 2021–22 IV liga | Group 1 GKS Wikielec Concordia Elbląg RKS Radomsko Olimpia Zambrów Ruch Wysokie Mazowieckie Huragan Morąg KS Wasilków | Group 2 Nielba Wągrowiec Flota Świnoujście Pomorzanin Toruń Unia Swarzędz Gwardia Koszalin Gryf Wejherowo Górnik Konin Chemik Police Mieszko Gniezno | Group 3 ROW 1964 Rybnik Polonia-Stal Świdnica Polonia Nysa | Group 4 Lewart Lubartów KS Wiązownica Korona II Kielce Stal Kraśnik Jutrzenka Giebułtów Hetman Zamość |
|---|
| Competition: | III liga Group 1 |
| Season: | 2021–22 |
| Winners: | Polonia Warsaw |
| Relegated: | Wissa Szczuczyn Sokół Aleksandrów Łódzki Znicz Biała Piska GKS Wikielec Mamry Giżycko KS Kutno |
| Matches: | 342 |
| Total Goals: | 1072 |
| League Topscorer: | Michał Strzałkowski (24 goals)[7] |
| Competition: | III liga Group 2 |
| Season: | 2021–22 |
| Winners: | Kotwica Kołobrzeg |
| Relegated: | Elana Toruń Kluczevia Stargard Bałtyk Koszalin |
| Matches: | 290 |
| Total Goals: | 897 |
| League Topscorer: | Jakub Bojas (23 goals)[8] |
| Competition: | III liga Group 3 |
| Season: | 2021–22 |
| Winners: | Zagłębie Lubin II |
| Relegated: | Foto-Higiena Gać Karkonosze Jelenia Góra Piast Żmigród |
| Matches: | 306 |
| Total Goals: | 954 |
| League Topscorer: | Patryk Kusztal (17 goals)[9] |
| Competition: | III liga Group 4 |
| Season: | 2021–22 |
| Winners: | Siarka Tarnobrzeg |
| Relegated: | Wólczanka Wólka Pełkińska Tomasovia Tomaszów Lubelski Korona Rzeszów |
| Matches: | 306 |
| Total Goals: | 903 |
| League Topscorer: | Wojciech Białek (25 goals) |