Throughout the world, กะลาสี (Kelasi 
, Kalasi 
, Pailor 
) is a common primarily feminine, but scarcely boy's first name. The forename กะลาสี is habitual in India, where it is quite a rare predominantly feminine, but very infrequently male name, South Africa, where it is a very rare mostly male, but seldom feminine name, and Indonesia, where it is a very rare female name. Very seldom, กะลาสี is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kelasi | Myanmar, Malaysia, India, China, France |
| Kalasi | Botswana, Tanzania, Indonesia, Democratic Republic of the Congo, India |
| Pailor | United Kingdom, Canada, India, United States |
| กะลาสี | Thailand |