Family name มาสาย (Masai 
, มาสาย 
, Lateing 
) , all over the world, is quite a common cognomen. The cognomen มาสาย is habitual in Kenya, where it is quite a common surname, Bolivia, where it is quite a rare surname, and Tanzania. Likewise, มาสาย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Masai | Tanzania, Kenya, India, Bolivia, Japan |
| มาสาย | Thailand |
| Lateing | Malaysia |