Surname Гордиычук (Gordiychuk 
, Гордиычук 
) , in the entire world, is a very rare family name. The cognomen Гордиычук is characteristic of Bulgaria, where it is a rare surname, Portugal, where it is a very rare surname, and Ukraine. Measured by absolute frequency, it most frequently occurs in Russia, Ukraine, and Italy. Very seldom, Гордиычук is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gordiychuk | Portugal, Italy, Bulgaria, United States, Ukraine |
| Гордиычук | Russia |