The capital of French Guiana is Cayenne. Located on the northeastern coast of South America, Cayenne serves as the administrative and economic center of French Guiana, which is an overseas department and region of France. The city is situated along the coast and features a vibrant mix of cultures, reflecting the diverse population of the region, including Creole, indigenous, and migrant communities. Cayenne is known for its colonial architecture, lively markets, and proximity to tropical rainforests, making it a unique destination for visitors interested in both culture and nature.