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 | Spain, Lithuania, United Kingdom, Romania, Albania |
| Andreius | Brazil, Philippines, Venezuela, United States |
| Андрейус | Russia, Ukraine |
| Andreyus | Brazil, United States, India, Lithuania |