Last name ใส่ (Sai 
, Puted 
, Putthised 
) , worldwide, is a widespread cognomen. The last name ใส่ is habitual in 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, it is the most numerous in Myanmar, India, and Mongolia. More frequently, ใส่ is the forename as well as the last name.