The 2024 Washington Open (called the Mubadala Citi DC Open for sponsorship reasons) was a tennis tournament played on outdoor hard courts.

FitzGerald Tennis Center in Washington, D.C., United States, from 29 July to 4 August 2024 and was played on a hard court manufactured by Har-Tru Sports Coatings.

[4] The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: † Rankings are as of 22 July 2024.

The following pairs received wildcard entry into the doubles main draw: The following pair received entry from the qualifying draw: The following pair received entry as lucky losers: † Rankings are as of 22 July 2024.

The following pairs received wildcard entry into the doubles main draw: