2016 Shimadzu All Japan Indoor Tennis Championships – Singles

Michał Przysiężny is the defending champion, but chose not to defend his title.

Yuichi Sugita won the title, defeating Zhang Ze in the final 5–7, 6–3, 6–4.

Seeds
• # 🇯🇵 Yūichi Sugita (champion)

• # 🇯🇵 Tatsuma Ito (first round)

• # 🇯🇵 Go Soeda (quarterfinals)

• # 🇦🇺 Luke Saville (first round)

• # 🇯🇵 Hiroki Moriya (second round)

• # 🇨🇳 Bai Yan (second round)

• # Chen Ti (second round)

• # 🇰🇷 Lee Duck-hee (first round)