2017–18 Ligue 2

The 2017–18 Ligue 2 (referred to as the Domino's Ligue 2 for sponsorship reasons ) season was the 79th season since its establishment.

Teams
There are 20 clubs in the league, with three promoted teams from Championnat National replacing the three teams that were relegated from Ligue 2 following the 2016–17 season. All clubs that secured Ligue 2 status for the season were subject to approval by the DNCG before becoming eligible to participate.

Team changes
Promoted from 2016–17 Championnat National
 * Quevilly-Rouen
 * Châteauroux
 * Paris FC

Relegated from 2016–17 Ligue 1
 * Nancy
 * Lorient

Promoted to 2017–18 Ligue 1
 * Troyes
 * Amiens
 * Strasbourg

Relegated to 2017–18 Championnat National
 * Laval
 * Red Star

Personnel and kits
1Subject to change during the season.

Promotion play-offs
A promotion play-off competition was held at the end of the season, involving the 3rd, 4th and 5th-placed teams in 2017–18 Ligue 2, and the 18th-placed team in 2017–18 Ligue 1.

The quarter-final was played on 15 May, the semi-final on 18 May and the final on 23 and 27 May 2018.

Semi-final

 * Notes



Relegation play-offs
A relegation play-off was held at the end of the season between the 18th-placed Ligue 2 team and the 3rd-placed team of 2017–18 Championnat National. This was played over two legs on 22 and 27 May 2018.

Grenoble are promoted to 2018–19 Ligue 2