Surname Mikhai (Mikhai 
, Михаи 
, Михай 
) , throughout the world, is quite a rare family name. The cognomen Mikhai is characteristic of Eastern Europe, particularly Moldova, where it is quite a common surname, Russia, where it is quite a rare surname, and Belarus, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Russia, Moldova, and Ukraine. Very seldom, Mikhai is the forename as well as the last name.