Family name Chvoj (Chvoj 
) , in all the world, is a very rare cognomen. The family name Chvoj is habitual in Czechia, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chvoj | Czechia, United States |
| karel chvoj CZ (b. 1879) |
|
|
| zdeněk chvoj CZ (b. 1948) |
|