The 2015 BB&T Atlanta Open was a professional tennis tournament played on hard courts. It was the 28th edition of the tournament, and part of the 2015 ATP World Tour and the 2015 US Open Series. It took place at Atlantic Station in Atlanta, United States between July 27 and August 2, 2015. It was the first men's event of the 2015 US Open Series. First-seeded John Isner won the singles title.