Cognomen Mashei (Mashei 
, Машей 
) , around the world, is a rare surname. The last name Mashei is characteristic of Belarus, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Russia, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Belarus, Russia, and Pakistan. Very seldom, Mashei is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mashei | Belarus, Australia, India, United States, Pakistan |
| Машей | Russia, Ukraine, Kazakhstan, Belarus |