Jeffrey Scott Bittiger (born April 13, 1962) is a former relief pitcher for the Philadelphia Phillies, Minnesota Twins, and Chicago White Sox of Major League Baseball.

He hit a home run off of Bob Kipper of the Pittsburgh Pirates on September 22, 1986, in his second at bat as a player for the Phillies, earning his first career win and getting credit for the game-winning RBI.

He pitched one inning in the Twins loss to the Kansas City Royals, giving up two hits and one earned run.

The next year, 1988, Bittiger played for the Chicago White Sox, pitching in a career high 25 games, and starting seven of those.

After the season, Bittiger was traded to the Los Angeles Dodgers for Tracy Woodson, but he never pitched in the majors again.