Last name Chalai (Chalai 
, ชลัย , Шалай 
) , globally, is quite a rare surname. The last name Chalai is habitual in Belarus, where it is quite a rare surname, Ukraine, and Kazakhstan, where it is a rare surname. In absolute terms, this name is the most popular in Eastern Europe, particularly Ukraine, Belarus, and Russia. Very seldom, Chalai is the forename as well as the last name.