| Singles | |
|---|---|
| 2017 Shimadzu All Japan Indoor Tennis Championships | |
| Champion |
|
| Runner-up |
|
| Final score | 6–3, 6–4 |
Yūichi Sugita was the defending champion but lost in the quarterfinals to Lloyd Harris.
Yasutaka Uchiyama won the title after defeating Blaž Kavčič 6–3, 6–4 in the final.