Austin Ryan Kearns (born May 20, 1980, in Lexington, Kentucky) is a Major League Baseball player. He currently plays right field for the Washington Nationals of the National League.

After playing at Lafayette Senior High School, he was offered a scholarship to play college baseball at the University of Florida. However, he decided to sign with the Cincinnati Reds after being selected seventh overall in the 1998 Major League Baseball Draft. After three seasons in the Reds' minor league system, he made his MLB debut on April 17, 2002.

Kearns was traded to the Nationals on July 13, 2006, along with Felipe Lopez and Ryan Wagner from the Cincinnati Reds in exchange for Gary Majewski, Bill Bray, Royce Clayton, Brendan Harris, and Daryl Thompson.