2005 Legg Mason Tennis Classic
Date	August 1–7
Edition	36th
Category	International Series
Draw	64S / 16D
Prize money	$575,000
Surface	Hard / outdoor
Location	Washington, D.C., United States
Venue	William H.G. FitzGerald Tennis Center
Champions
Singles
Andy Roddick[1]
Doubles
Bob Bryan / Mike Bryan[2]
← 2004 · Washington Open · 2006 →

The 2005 Legg Mason Tenis Classic was the 36th edition of this tennis tournament and was played on outdoor hard courts. The tournament was part of the International Series of the 2005 ATP Tour. It was held at the William H.G. FitzGerald Tennis Center in Washington, D.C. from August 1 through August 7, 2005.

Finals

Singles

Andy Roddick defeated James Blake, 7–5, 6–3

• It was Roddick's 4th title of the year and the 19th of his career.

Doubles

Bob Bryan / Mike Bryan defeated Wayne Black / Kevin Ullyett, 6–4, 6–2