Last name Галлаи (Gallai 
, Галлаи 
) , throughout the world, is quite a rare surname. The family name Галлаи is habitual in Hungary, where it is quite a common surname, Italy, where it is a rare surname, and Austria. Measured by absolute frequency, this name is the most popular in Hungary, Italy, and France. Much less frequently, Галлаи is the forename as well as the last name.