| Clubname: | Carquefou |
| Fullname: | Union Sportive de la Jeanne d’Arc de Carquefou |
| Nickname: | Les Verts et Blancs (The Green and Whites) |
| Founded: | 1942[1] |
| Ground: | Stade du Moulin-Boisseau, Carquefou |
| Capacity: | 3,500 |
| Chairman: | Michel Auray[2] |
| Manager: | Denis Renaud[3] |
| Season: | 2012-13 |
| Position: | Championnat National, 6th |
| Leftarm1: | 287b61 |
| Body1: | 287b61 |
| Rightarm1: | 287b61 |
| Shorts1: | 287b61 |
| Socks1: | 287b61 |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
USJA Carquefou is a French football team currently playing in Championnat National based in Carquefou, Loire-Atlantique.
The club was founded in 1942 as merger of two local clubs, Union Sportive de Carquefou and Jeanne d'Arc de Carquefou, the latter being a sports team whose football section was founded three years earlier.
During the 2007–2008 season, Carquefou had a very successful Coupe de France campaign, reaching the quarter-finals in the competition after having defeated Olympique Marseille in the round of 16 despite the club's amateur status. Carquefou continued successes and promoted to CFA after winning Group G of CFA 2 in 2008–2009 season. Carquefou finally won Group D of CFA and promoted to Championnat National once in 2011–12 season.
The Reserve team played in the DH Atlantique.