In all the world, Tjoi (Tjoi 
) is a very rare male first name. The forename Tjoi is habitual in Indonesia, where it is a very rare masculine name, and China, where it is an extremely rare boy's name. More frequently, Tjoi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tjoi | China, Indonesia, United States, South Africa |