The 2026 ATP Tour is the global elite men's professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2026 tennis season. The 2026 ATP Tour calendar comprises the Grand Slam tournaments, supervised by World Tennis, the ATP Finals, the ATP Tour Masters 1000, the ATP 500, the ATP 250, and the United Cup. Also included in the 2026 calendar are the Davis Cup, Next Gen ATP Finals, and Laver Cup, none of which distribute ranking points.