A flea market is a type of market where vendors sell secondhand or used goods, antiques, vintage items, and other miscellaneous items. The name "flea market" comes from the French marché aux puces, which literally translates to "market of fleas." It is said that the term originated because the secondhand goods sold at these markets were thought to have come from households with flea infestations.

Flea markets can be held outdoors, in a designated space or indoor markets, and are typically held on weekends or holidays. They provide an opportunity for individuals to sell items they no longer need or want, and for shoppers to find unique, one-of-a-kind items at affordable prices. Some flea markets also feature food vendors, live entertainment, and other activities to create a festive atmosphere.