Around the world, Cosoi (Cosoi 
) is a very rare male first name. The forename Cosoi is habitual in Eastern Europe, particularly Romania, where it is a rare male name. Much more frequently, Cosoi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cosoi | Chile, Moldova, United States, Romania, Italy |
Mr, Rodica, Victor, Vivian, Florin, Mariana, Marilyn, Cristi, Allison, Eduardo, Eugenia, Angelica, Cristian, Benjamin, Mihail-Lucian, Gregory, Costin, Connie, Amanda, Ms, Lea, Mark, Leah, Jana, Petru, David, Dayna, Laura, Vasea, Irina, Iulia, Marina, Marius, Andrei, Alexandru, and Elena Cristina