Novak Djokovic defeated John Millman in the final, 6–3, 6–2 to win the 2019 Japan Open.
Daniil Medvedev was the reigning champion, but did not defend his title.
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