The Home Depot, Inc., often simply referred to as Home Depot, is an American multinational home improvement retail corporation that sells tools, construction products, appliances, and services, including fuel and transportation rentals. Home Depot is the largest home improvement retailer in the United States. In 2021, the company had 490,600 employees and more than $151 billion in revenue. The company is headquartered in unincorporated Cobb County, Georgia, with an Atlanta mailing address.

A big-box store is a physically large retail establishment, usually part of a chain of stores. The term sometimes also refers, by extension, to the company that operates the store. The term "big-box" references the typical appearance of buildings occupied by such stores.