Cognomen Mirvais (Мирвайс 
, Mirvais 
, Мирваис ) , throughout the world, is a very rare family name. The surname Mirvais is characteristic of Belarus, where it is a rare surname, Kyrgyzstan, and Kazakhstan, where it is a very rare surname. Measured by absolute frequency, the name is most common in Belarus, Kyrgyzstan, and Russia. Likewise, Mirvais is the forename as well as the last name.