The 2020 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2020 tennis season. The 2020 ATP Tour calendar was composed of the Grand Slam tournaments, the ATP Finals, the ATP Masters 1000, the ATP Cup, the ATP 500 series, the ATP 250 series, and the Davis Cup. Also included in the 2020 calendar were the tennis events at the Next Generation ATP Finals, and the Laver Cup, neither of which distributed ranking points. Several tournaments were suspended or postponed due to the COVID-19 pandemic, including the Summer Olympics in Tokyo. On 17 June 2020, ATP issued the revised calendar for Tour resumption.

Andrey Andreyevich Rublev is a Russian professional tennis player. He has been ranked as high as world No. 5 in singles by the ATP, which he first achieved in September 2021. He has won 16 ATP Tour singles titles, including two Masters 1000 at the 2023 Monte-Carlo Masters and at the 2024 Madrid Open. He has reached the quarterfinals of all four majors, but is the only male player in the Open Era to have done so the most times without progressing to the semifinals. Rublev broke into the top 10 in the ATP rankings in October 2020. He has won four ATP doubles titles, including a Masters 1000 title at the 2023 Madrid Open with Karen Khachanov, and in addition a gold medal in mixed doubles at the 2020 Summer Olympics with Anastasia Pavlyuchenkova.