The Home Depot (NYSE: HD) is an American retailer of home improvement and construction products and services. The Home Depot operates many big-box format stores across the United States (including all 50 U.S. states, the District of Columbia, Puerto Rico, the Virgin Islands and Guam), all ten provinces of Canada, Mexico and China. The Home Depot is headquartered at the Atlanta Store Support Center in Cobb County, Georgia, in Greater Atlanta.

In terms of overall revenue reported to the U.S. Securities and Exchange Commission, The Home Depot is the largest home improvement retailer in the United States, ahead of rival Lowe's. The store operates out of large warehouse style buildings averaging 105,000 ft² (9,755 m²) with megastores operating in larger facilities (the company's largest store, located in Union, New Jersey is 225,000 ft²).

The Home Depot was founded in 1978 by Bernie Marcus, Arthur Blank, Ron Brill, and Pat Farrah. The Home Depot's proposition was to build home-improvement warehouses, larger than any of their competitors' facilities. Investment banker Ken Langone helped Marcus and Blank to secure the necessary capital.