The Potomac School is a coeducational, college-preparatory independent day school located on a wooded 90-acre campus in McLean, Virginia, United States, three miles (5 km) from Washington, D.C. Average class size is 15-17 students. For the 2021-22 school year, Potomac enrolled 1,066 students in grades K-12. The school has four divisions – Lower School, Middle School (4-6), Intermediate School (7-8), and Upper School (9-12) – each providing a balanced educational experience.

McLean is an unincorporated community and census-designated place in Fairfax County, Virginia, United States. The population of the community was 50,773 at the 2020 census. It is located between the Potomac River and Vienna within the Washington metropolitan area.