Family name Ulai (อุลัย 
, อุไล , Ulai 
) , worldwide, is a rare last name. The last name Ulai is characteristic of Papua New Guinea, where it is quite a rare surname, Malaysia, where it is a rare surname, and Myanmar. In absolute terms, this name is the most popular in Indonesia, Papua New Guinea, and India. More prevalently, Ulai is the forename as well as the last name.