|Full name||Union Sportive du Littoral de Dunkerque|
|Nickname(s)||Les Maritimes (The Seasiders)|
|2020–21||Ligue 2, 16th|
The club was founded in 1909 and have never played in a higher division than Ligue 2. They have once made it to the semi-finals of the Coupe de France, in 1929, and the quarter finals four times in 1930, 1937, 1968 and 1971.
The club is linked with and has had ties with Dartford FC of Kent, England.
The club were promoted to Ligue 2 again in 2020, when the 2019–20 Championnat National season ended prematurely, due to the COVID-19 pandemic. Dunkerque were second in the table at the time, and were promoted by the FFF executive committee.
- 1909–1919: Stade Dunkerquois
- 1919–1927: Union Sportive Dunkerque-Malo
- 1927–1934: Union Racing Dunkerque-Malo
- 1934–1954: Olympique Dunkerquois
- 1954–1987: Union Sportive de Dunkerque
- 1987–present: Union Sportive du Littoral de Dunkerque
- Division Honneur: Nord-Pas-de-Calais Group
- Champions: 1960
Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.
- "Nos Maritimes s'imposent à Béziers et restent leaders !". 23 January 2020.
- "USL Dunkerque : La résurrection d'une institution". 5 June 2020.
- "Le COMEX valide les montées de Pau et Dunkerque" (in French). foot-national.com. 11 May 2020.
- "Ligue 2 - USL Dunkerque" (in French). usldunkerque.com. Retrieved 21 July 2021.
- "US du Littoral de Dunkerque - Squad". soccerway. Retrieved 14 February 2020.