Surname Hudoi (Худои 
, Hudoi, Худой 
) , worldwide, is a rare family name. The last name Hudoi is habitual in Armenia, where it is quite a rare surname, Belarus, where it is a rare surname, and Russia. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Russia, Ukraine, and Belarus. Much less frequently, Hudoi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Худои | Russia, Armenia |
| Худой | Belarus, Ukraine, Russia |