Jeffrey Gilbert Kobernus (born June 30, 1988) is an American professional baseball player for the Washington Nationals of Major League Baseball.
Kobernus attended Bishop O'Dowd High School in Oakland, California and the University of California, Berkeley, where he played college baseball for the California Golden Bears baseball team.
The Washington Nationals drafted Kobernus in the second round, with the 50th overall selection, of the 2009 MLB Draft. After the 2012 season, the Boston Red Sox selected Kobernus in the Rule 5 draft, and traded him to the Detroit Tigers. Kobernus competed for a spot with the Tigers as a left fielder, but was returned to the Nationals during spring training.
Kobernus was called up to the Nationals from the Triple-A Syracuse Chiefs on May 25, 2013. He made his major league debut that day as a pinch runner.