George Nicholas Kontos is an American professional baseball player. A relief pitcher, he plays for the San Francisco Giants of Major League Baseball. Kontos made his MLB debut for the New York Yankees in 2011 before he was traded to the Giants before the 2012 season. Prior to playing professionally, he played college baseball at Northwestern University. He bats and throws right-handed.
- Born: June 12, 1985 (age 33), Lincolnwood
- Aliases: George Nicholas Kontos
- Height: 6′ 3″ (1.91m)