Darren Christopher Oliver (born October 6, 1970) is a Major League Baseball relief pitcher for the Los Angeles Angels of Anaheim.

Oliver is the son of former infielder Bob Oliver. Oliver played baseball and basketball at Rio Linda High School in Rio Linda, California. He was drafted by the Texas Rangers in the 3rd round of the 1988 Major League Baseball Draft.

Oliver made his major league debut on September 1, 1993, at the age of 22 at Fenway Park against the Boston Red Sox. In 1996, Oliver became a starter for the Rangers and won 14 games. From 1996 to 1998, Oliver pitched for the Rangers and then was traded to the St. Louis Cardinals for whom he pitched until 1999, returning to the Rangers for the next two years.