2003 Legg Mason Tennis Classic
Date	July 28 – August 3
Edition	35th
Category	International Series
Draw	48S / 16D
Prize money	$575,000
Surface	Hard / outdoor
Location	Washington, D.C., US
Venue	William H.G. FitzGerald Tennis Center
Champions
Singles
Tim Henman[1]
Doubles
Yevgeny Kafelnikov / Sargis Sargsian[2]
← 2002 · Washington Open · 2004 →

The 2003 Legg Mason Tennis Classic was a men's tennis tournament played on outdoor hard courts at the William H.G. FitzGerald Tennis Center in Washington, D.C. in the United States and was part of the International Series of the 2003 ATP Tour.It was the 35th edition of the tournament and ran from July 28 through August 3, 2003. Tenth-seeded Tim Henman won the singles title.

Finals

Singles

Tim Henman defeated Fernando González 6–3, 6–4

• It was Henman's 1st singles title of the year and the 10th of his career.

Doubles

Yevgeny Kafelnikov / Sargis Sargsian defeated Chris Haggard / Paul Hanley 7–5, 4–6, 6–2

• It was Kafelnikov's 2nd title of the year and the 53rd of his career. It was Sargsian's 1st title of the year and the 2nd of his career.