Ross Stores, Inc., operating under the brand name Ross Dress for Less, is an American chain of discount department stores headquartered in Dublin, California. It is the largest off-price retailer in the U.S.; as of 2023, Ross operates 1,765 stores in 45 U.S. states, the District of Columbia and Guam, covering much of the country, but with no presence in New England, Alaska, and areas of the Midwest. The company also operates DD's Discounts, a discount department store chain with over 300 locations across the United States, most of which are located in Sun Belt states.

A discount store or discounter offers a retail format in which products are sold at prices that are in principle lower than an actual or supposed "full retail price". Discounters rely on bulk purchasing and efficient distribution to keep down costs.