| Stadium Name: | William H.G. FitzGerald Tennis Center |
| Fullname: | William H.G. FitzGerald Tennis Center |
| Location: | Rock Creek Park, Washington, D.C. |
| Built: | 1990 |
| Owner: | Washington, D.C. |
| Operator: | Washington, D.C. |
| Surface: | Hardcourt |
| Tenants: | Washington Open (ATP 500 Series) (1990–present) Washington Open (WTA 500 series) (1991, 2012–present) |
| Seating Capacity: | 7,500 (tennis) |
The William H.G. FitzGerald Tennis Center is a tennis venue located in Rock Creek Park in Washington, D.C., United States It is named after William H. G. FitzGerald, a Washington-based private investor who was active in philanthropies and served as United States Ambassador to Ireland. It houses 15 hard courts and 10 clay courts. There are also five indoors courts which are heated and available in winter. The main stadium seats 7,500 spectators, including 31 suites with air conditioning. The center is the home of the Washington Open, an annual ATP Tour and WTA Tour event.