2009 U.S. Men's Clay Court Championships
Date	April 6–12
Edition	41st
Category	World Tour 250
Draw	32S / 16D
Prize money	$442,500
Surface	Clay / outdoor
Location	Houston, TX, United States
Venue	River Oaks Country Club
Champions
Singles
Lleyton Hewitt[1]
Doubles
Bob Bryan / Mike Bryan[2]
← 2008 · U.S. Men's Clay Court Championships · 2010 →

The 2009 U.S. Men's Clay Court Championships is a men's tennis tournament played on outdoor clay courts. It is the 41st edition of the U.S. Men's Clay Court Championships, and is an ATP World Tour 250 event. It takes place at River Oaks Country Club in Houston, Texas, United States, from April 6 through April 12, 2009. Unseeded Lleyton Hewitt won the singles title.

Lleyton Hewitt defeated Wayne Odesnik 6–2, 7–5

• It was Hewitt's 1st singles title of the year (after a break of 2 years) and the 27th of his career.

Bob Bryan / Mike Bryan defeated Jesse Levine / Ryan Sweeting 6–1, 6–2

• Official website
• Singles draw
• Qualifying Singles draw