Family name Андрейус (Andrejus 
, Andreius 
, Андрейус 
) , throughout the world, is a very rare last name. The surname Андрейус is characteristic of Lithuania, where it is a rare surname, Brazil, where it is an extremely rare surname, and Venezuela. Predominantly, Андрейус is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Andrejus | Romania, United Kingdom, Spain, Lithuania, Albania |
| Andreius | Venezuela, Brazil, United States, Philippines |
| Андрейус | Russia, Ukraine |
| Andreyus | India, Brazil, Lithuania, United States |