In the entire world, ยศสกุล (ยศสกุล 
, Yossakul , Yotsakun ) is a very rare gender-neutral forename. The forename ยศสกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare gender-neutral name. More prevalently, ยศสกุล is the last name as well as the forename.