Cognomen סלאי (Szalay 
, סלאי 
) , in the entire world, is a common family name. The surname סלאי is characteristic of Hungary, where it is quite a common surname, Slovakia, and Austria, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in Hungary, Slovakia, and the United States. Much less frequently, סלאי is the forename as well as the last name.