Argos Limited is a British catalogue retailer operating in the United Kingdom and formerly in Ireland, acquired by Sainsbury's supermarket chain in 2016. It was established in November 1972 and is named after the Greek city of Argos. The company trades both through physical shops and online, with 29 million yearly shop customers, and nearly a billion online visitors per annum. It has also franchised overseas to countries such as China.

A catalog merchant is a form of retailing. The typical merchant sells a wide variety of household and personal products, with many emphasizing jewelry. Unlike a self-serve retail store, most of the items are not displayed; customers select the products from printed catalogs in the store and fill out an order form. The order is brought to the sales counter, where a clerk retrieves the items from the warehouse area to a payment and checkout station.