Southern Football League 2019–20

The 2019–20 season was the 117th in the history of the Southern League since its establishment in 1894. The league (known as Evo-Stik League Southern, following a sponsorship deal with Evo-Stik) has two divisions (Central and South) at step 3 of the National League System (NLS) and two divisions (East and West) at step 4 of the NLS.

This was the first season to consist of four divisions in the league, after the Southern League was chosen to create a new Central Division, including clubs from the Southern, Isthmian, and Northern Premier Leagues. The former Premier Division was renamed the South Division. The league constitution was announced in May 2018.

Premier Division Central
The Central Division at step 3 of the NLS features nine clubs from the previous season and 13 new clubs:

Premier Division South
The South Division (formerly Premier Division) at step 3 of the NLS features 11 clubs from the previous season and 11 new clubs:

Division One Central
The East Division at Step 4 of the NLS features 12 new clubs for 2019–20:

Division One South
The West Division at Step 4 of the NLS features five new clubs for 2019–20: