The club was founded in 1960 as result of the merger of two small Ajaccio clubs,
Football Club Ajaccien (commonly known as
FC Ajaccio), founded in 1930 and
Gazélec Corse Club, founded in 1910. Gazélec reached the semi-finals of the
2011–12 Coupe de France, while playing in the third-tier
Championnat National. They hosted home games in the later rounds at the larger
Stade François Coty, home of
AC Ajaccio. On 15 May 2015, Gazélec were promoted to
Ligue 1 for the first time in the club's history, following a 3–2 win over
Niort with two goals by
John Tshibumbu. It was their second consecutive promotion and fourth in five years. The team started off the
2015–16 Ligue 1 season as one of the smallest teams to compete in the division's history. They were instantly relegated, in 19th place. In June 2019, the club were relegated to the third tier after a play-off loss to
Le Mans. They were relegated again at the end of the truncated
2019–20 Championnat National season, after being in the relegation places when the season was halted due to the
COVID-19 pandemic. In 2021, they suffered administrative relegation to the fifth-tier
Championnat National 3 for financial reasons. On 20 December 2022, following the initiation of criminal proceedings against its president of two months, receivership proceedings were commenced by the commercial court of Ajaccio. On 23 January 2023 the club appeared at the commercial court again, where a decision to liquidate it was tabled, under advisement for one week. A week later, the court confirmed the decision, leading to the suspension of the two senior teams of the club from Championnat National 3 and Régional 2, and their results for the season being expunged. On 13 July 2023, the
French Football Federation decided that Gazélec Ajaccio could participate in the upcoming season's Régional 2. In the 2023–24 season, they achieved immediate promotion to the
Régional 1. They gained a successive promotion to the
Championnat National 3 in 2025. ==Honours==