Tennis at the 2020 Summer Olympics in Tokyo was held between 24 July and 1 August 2021 at the Ariake Tennis Park.

Karen Abgarovich Khachanov is a Russian-Armenian professional tennis player. Khachanov has won six ATP Tour singles titles, including a Masters 1000 title at the 2018 Paris Masters, has claimed an Olympic silver medal at the 2020 Tokyo Olympics, and has reached two Major semifinals at the 2022 US Open and 2023 Australian Open. He has also won one doubles Masters 1000 title at the 2023 Madrid Open partnering Andrey Rublev. He achieved his career-high singles ranking of world No. 8 on 15 July 2019. He also has a career high ranking of No. 53 in doubles achieved on 29 January 2024.