In the entire world, อุลัยลักษณ์ (อุลัยลักษณ์ 
, Ulailuck , Ulailak ) is a rare dominantly feminine, but uncommonly boy's first name. The forename อุลัยลักษณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare mostly feminine, but seldom boy's name.