Globally, Còi (Còi 
) is a rare unisex forename. The first name Còi is characteristic of South-eastern Asia, particularly Vietnam, where it is a rare epicene name. Likewise, Còi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Còi | Vietnam |
| giang còi Vietnamese actor (1962-2021), VN (b. 1962) |
|