2019–20 Tercera División

The 2019–20 Tercera División is the fourth tier of Spanish football. It will begin in August 2019 and will end in late June 2020 with the promotion play-off finals.

Competition format

 * The top four eligible teams in each group will play the promotion playoffs.
 * The champion of each group will qualify to 2019–20 Copa del Rey. If the champion is a reserve team, the first non-reserve team qualified will join the Copa.
 * In each group, at least three teams will be relegated to Regional Divisions.