Throughout the world, วอย (Woi 
, Woy 
, วอย 
) is a rare dominantly masculine, but infrequently female first name. The first name วอย is habitual in South-eastern Asia, particularly Indonesia, where it is a rare male name, Malaysia, where it is a very rare gender-neutral name, and Thailand. More frequently, วอย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Woi | Indonesia, Taiwan, Ivory Coast, Malaysia, United States |
| Woy | Indonesia, Taiwan, Germany, Malaysia, United States |
| วอย | Thailand |
| Lvoy | Myanmar, Philippines |