Family name ไหย่ (Yai 
, ไหย่) , around the globe, is a common surname. The surname ไหย่ is habitual in Myanmar, where it is quite a rare surname, Benin, and Papua New Guinea. Not in comparison with a country's population, it most frequently occurs in Myanmar, Japan, and India. Also, ไหย่ is the forename as well as the last name.