An outlet store is a retail store in which manufacturers sell their irregular, surplus or old-fashion stock directly to the public. The stores are operated by and branded after the manufacturer. Such stores can be brick and mortar and/or online clothing stores.

Traditionally, a factory outlet was a store, attached to a factory or warehouse. Often these stores are grouped together in outlet malls.

The term "outlet store" can also refer to any retailer selling returned and discontinued products, often at heavily reduced prices. These stores can also be found in outlet malls.