The River Oaks International Tennis Tournament, also known as the River Oaks Invitational Tennis Tournament, was a men's tennis tournament held in early spring from 1931 until 2007 at the River Oaks Country Club, Houston, Texas, USA.

The inaugural edition in April 1931, which made a loss of $1,500, was won by 19-year-old Ellsworth Vines.

[2][6] One of the landmark tournament events was in 1974, the championship match was broadcast before a national audience; thirty-four-year-old Rod Laver, met heir apparent, seventeen-year-old Björn Borg.

Laver, who in 1961 became the first foreign player to win the singles title, won in straight sets and became the first man to hold four singles championships at River Oaks.

[7] In 2008, the River Oaks International was merged with one of the oldest, and last remaining clay court tournaments in the United States, the U.S. Men's Clay Court Championships.