Globally, ย่าย (Yai 
, ย่าย) is a common epicene forename. The first name ย่าย is characteristic of Mongolia, where it is quite a rare epicene name, Japan, where it is quite a rare girly name, and Ethiopia, where it is quite a rare mostly male, but infrequently female name. Not in comparison with a country's population, this name is the most popular in Japan, India, and Ethiopia. Also, ย่าย is the last name as well as the forename.