Coudekerque-Branche (French: [kudkɛʁk bʁɑ̃ʃ]; Dutch: Nieuw-Koudekerke [niu ˈkʌudəˌkɛrkə]; West Flemish: Nieuw-Koukerke; French Flemish: Nieuwe-Koudekerke; lit. 'New Cold Church') is a commune and town in the French department of Nord, Hauts-de-France, northern France. It is the largest suburb of Dunkirk, and is adjacent to it on the southeast. In 2018, Coudekerque-Branche had a population of 20,925.