Surname Vichaj (Vichaj 
, Вичай 
) , in the world, is a very rare cognomen. The last name Vichaj is habitual in Kazakhstan, where it is a very rare surname, Russia, where it is an extremely rare surname, and India. Much less frequently, Vichaj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vichaj | United States, India |
| Вичай | Russia, Kazakhstan |