Surname ไซร้ (Sai 
, ไซร้) , worldwide, is a widespread last name. The surname ไซร้ is characteristic of Mongolia, where it is a prevalent surname, Myanmar, where it is a common surname, and Malaysia, where it is quite a common surname (explore the name in all countries). In absolute terms, this name is the most popular in Myanmar, India, and Mongolia. More prevalently, ไซร้ is the forename as well as the last name.