The 2022–23 Belgian National Division 1 is the seventh season of the third-tier football league in Belgium and the first one in which U23 teams are admitted into the league, due to the last minute bankruptcy of Roeselare.
These twenty teams will play each other twice in a regular competition.
At the end of season, the top three teams will be automatically promoted to the 2023–24 Challenger Pro League.
Due to reduce the size back from 20 to 18 teams.
The three bottom teams will be automatically relegated to 2023–24 Belgian Division 2.