The 2022–23 III liga season was the 15th 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 7th season under its current league division format.

[2] The league was operated by the Polish Football Association (PZPN).

The competition was contested by 72 clubs split geographically across 4 groups of 18 teams, with the winners of each group gaining promotion to the II liga.

The teams included semi-professional clubs (although a few are professional) and the reserve teams of professional clubs.

72 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.