| Competition: | Belgian Second Amateur Division |
| Season: | 2019–20 |
| Winners: | Knokke (A), Tienen (B) & Francs Borains (C) |
| Promoted: | Knokke, Tienen & Francs Borains |
| Relegated: | Hamme & Sint-Niklaas (A) Duffel, Geel & Vosselaar (B) Namur FLV, Onhaye & Tilleur (C) |
| Prevseason: | 2018–19 |
| Nextseason: | 2020–21 |
The 2019–20 Belgian Second Amateur Division was the fourth season of the division in its current format, placed at the fourth-tier of football 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 12 counting as final. As a result, Knokke, Tienen and Francs Borains were crowned champions in their respective league and were each promoted to the 2020–21 Belgian First Amateur Division.
The division consists of three separate leagues, each containing 16 teams. Leagues A and B consist of teams with a license from the Voetbalfederatie Vlaanderen (VFV, the Flemish/Dutch speaking wing of the Belgian FA), while league C contains teams with a license from the Association des Clubs Francophones de Football (ACFF, the French-speaking wing of the RBFA). The champions from each of the three leagues will promote to the 2020–21 Belgian First Amateur Division. The fixtures were announced in early July 2019.