2017–18 Tercera División

The 2017–18 Tercera División was the fourth tier in Spanish football. It began play in August 2017 and ended in late June 2018 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 2018–19 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.

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper

League table

 * Top goalscorers


 * Top goalkeeper