2019–20 Belgian First Amateur Division

The 2019–20 Belgian First Amateur Division was the fourth season of the third-tier football league in Belgium. Mid-March all matches were temporarily postponed due to the COVID-19 pandemic in Belgium, only to be canceled permanently two weeks later, with the standing as of March 12th counting as final. As a result, Deinze was crowned champions and promoted to the 2020–21 Belgian First Division B.

In

 * Tubize was relegated from the 2018–19 Belgian First Division B.
 * Sint-Eloois-Winkel was promoted after winning the 2018–19 Belgian Second Amateur Division A.
 * Patro Eisden Maasmechelen was promoted after winning the 2018–19 Belgian Second Amateur Division B.
 * La Louvière Centre was promoted after winning the 2018–19 Belgian Second Amateur Division C.
 * Visé was promoted after winning the Promotion play-offs.

Out

 * Virton were promoted from the 2018–19 Belgian First Amateur Division as champions.
 * Aalst, ASV Geel and Knokke finished in the relegation zone (14th through 16th) in the 2018–19 Belgian First Amateur Division and were therefore relegated to the 2019–20 Belgian Second Amateur Division.
 * Oudenaarde lost the relegation play-offs and were thus also relegated.

Merger

 * Châtelet merged with Royal Olympic Club de Charleroi-Marchienne to become R. Olympic Charleroi Châtelet Farciennes, known as Olympic Charleroi CF. Strictly speaking, the new club is a continuation of Royal Olympic Club de Charleroi-Marchienne rather than Châtelet, as the latter club has been dissolved.