Cognomen Sapain (Sapain 
) , in the entire world, is a very rare family name. The surname Sapain is habitual in Malaysia, where it is a very rare surname, Philippines, where it is an extremely rare surname, and India. More frequently, Sapain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sapain | Philippines, Brazil, Malaysia, India, Pakistan |