The 2016 ATP World Tour was the global elite professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2016 tennis season. The 2016 ATP World Tour calendar comprised the Grand Slam tournaments (supervised by the International Tennis Federation (ITF)), the ATP World Tour Masters 1000s, the ATP World Tour 500 series, the ATP World Tour 250 series, the Davis Cup (organized by the ITF), and the ATP World Tour Finals. Also included in the 2016 calendar were the tennis events at the 2016 Summer Olympics and Hopman Cup, neither of which distributed ranking points.