Ben Shelton defeated Aslan Karatsev in the final, 7–5, 6–1 to win the singles tennis title at the 2023 Japan Open. It was his first ATP Tour title. He and his father Bryan Shelton became the fourth father-son duo in the Open Era to win tour-level singles titles.
Taylor Fritz was the defending champion, but lost in the second round to Shintaro Mochizuki.
Seeds
Draw
Finals
Top half
Bottom half
Qualifying Seeds
Qualifiers
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
References
External links Main draw Qualifying draw