2022–23 Gamma Ethniki

The 2022–23 Gamma Ethniki was the 40th season since the official establishment of the championship in 1983, and the second after the reestablishment as the 3rd tier of the Greek Football. The competition started on 13 November 2022, and was conducted in five groups, in contrast to 2021–22 season, when it was conducted in seven groups. The groups were formed according to geographical criteria. After all games of the five groups are played, the champion of each group qualifies for a playoff round, from which the top four clubs will be promoted to Super League 2.

Play-off round
The five champions from Regular season played in a double round-robin tournament for four places in 2023–24 Super League Greece 2.