Worldwide, Дои (Toshitake 
, Toshisuke , Doi 
, and others...) is quite a rare unisex forename. The given name Дои is characteristic of Israel, where it is quite a rare epicene name, Japan, where it is a rare masculine name, and Vietnam, where it is a rare predominantly male, but scarcely female name. Not in comparison with a country's population, it is commonest in Japan, Vietnam, and India. Very seldom, Дои is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Toshitake | Brazil, Japan, China, United States, Singapore |
| Toshisuke | Brazil, United States, Japan |
| Doi | Brazil, Japan, United States, Myanmar, India |
| Toshitsune | United States, Germany, Japan |
| Toshitomo | Brazil, France, Japan |
| Toshisato | Japan |
| Дои | Russia |