2018–19 Botswana First Division South

The 2018-19 Botswana First Division South was the 54th season of the Botswana First Division South since its inception in 1966. It was played from August to May. Gilport Lions were crowned champions.

Team summaries
Teams promoted from Botswana Division One Teams relegated from Botswana Premier League Teams promoted to Botswana Premier League Teams relegated to Botswana Division One Stadiums and locations
 * Holy Ghost
 * Ncojane Young Stars
 * Sankoyo Bush Bucks
 * Mochudi Centre Chiefs
 * Black Forest
 * Gilport Lions
 * Black Rangers
 * Modipane United
 * Blue Stars