| 1999 Legg Mason Tennis Classic | |
|---|---|
| Date | August 16–22 |
| Edition | 30th |
| Draw | 56S / 28D |
| Prize money | $600,000 |
| Surface | Hard / outdoor |
| Location | Washington, D.C., US |
| Venue | William H.G. FitzGerald Tennis Center |
| Champions | |
| Singles | |
 Andre Agassi[1] | |
| Doubles | |
Justin Gimelstob /  Sébastien Lareau[2] | |
The 1999 Legg Mason Tenis Classic was the 30th edition of this tennis tournament and was played on outdoor hard courts. The tournament was part of the International Series of the 1999 ATP Tour. It was held at the William H.G. FitzGerald Tennis Center in Washington, D.C. from August 16 through August 22, 1999.
- ^ "1999 Washington – Singles draw". Association of Tennis Professionals (ATP).
- ^ "1999 Washington – Doubles draw". Association of Tennis Professionals (ATP).