Dantokpa Market, Open-air market in Cotonou, Benin.

Dantokpa Market is an open-air market in Cotonou's fourth arrondissement, beside the lagoon of Dan. Its main building measures about 66 by 44 metres over several levels, with roughly 1,100 rental stalls and shops; around it stand bamboo apatams and raised kanter platforms along the roads. Zones specialise in food, textiles, hardware, timber, spare parts and Vodun objects.

The market was established in 1963 and later grew into one of West Africa's largest commercial centers. Over time, the location became a major economic hub connecting traders across the region.

The name Dantokpa comes from Fon: "on the banks of the lagoon of Dan", Dan being a serpent divinity of prosperity. An altar with a fetish for Dan still stands inside the market. Stalls also sell Vodun ritual objects — wood, metal, animal bones, stones — openly, which is rare in West African markets.

Merchants and customers reach the market by both land and water routes, with many boats docking directly at the waterfront. The different arrival options make it easy to explore the site on foot or by water transport.

The site operates as a self-contained economic system where roughly one million daily visitors engage in trade. This volume and the specialized trading zones create something like a city within the city.