Last name لای (Laj 
, Лай 
, لای) , in the entire world, is quite a rare family name. The last name لای is habitual in Guatemala, where it is quite a rare surname, Slovenia, where it is a rare surname, and Tunisia. Measured by absolute frequency, it is the most numerous in Guatemala, Bangladesh, and India. Likewise, لای is the forename as well as the last name.