Fair Lakes is a census-designated place (CDP) and business park located west of Fairfax in Fairfax County, Virginia, United States.

[1] Fair Lakes is a mixed-use development of upscale residential apartments and commercial buildings, built by the Peterson Companies.

Unincorporated land that is not part of any census-designated place is to the south across Route 29, including Cobbs Corner and Blevinstown.

[3] The area was farm land until planned development of the office parks and neighborhoods began in the 1980s and 1990s.

At the 2020 census (some information from the 2022 American Community Survey) there were 8,404 people, 3,563 housing units and 3,621 households residing in the CDP.