Family name มาสิริ (Masiri 
, มาสิริ ) , across the world, is quite a rare cognomen. The last name มาสิริ is characteristic of Thailand, where it is a rare surname, Saudi Arabia, and Malaysia. Measured by absolute frequency, the name is most common in Thailand, Ethiopia, and Saudi Arabia. Much less frequently, มาสิริ is the forename as well as the last name.