Gabès, also spelled Cabès, Cabes, Kabes, Gabbs and Gaps, is the capital city of the Gabès Governorate in Tunisia. It is located on the coast of the Gulf of Gabès. With a population of 152,921, Gabès is the 6th largest Tunisian city. Gabes is 327 km away from Tunis and 113 km away from Sfax.

The Gulf of Gabes, also known as Lesser Syrtis, contrasting with the Greater Syrtis in Libya, is a gulf on Tunisia's east coast in the Mediterranean Sea, off North Africa. The gulf roughly spans the coast from Sfax to Djerba. At the head of the gulf is the city of Gabès (Ghannouche) where the tides have a large range of up to 2.1 m at spring tides. Both Gabès and Sfax are major ports on the gulf, supporting sponge and tuna fisheries, with Gabès being the economic and administrative center.