Cognomen Blaan (Blaan 
) , globally, is a rare family name. The surname Blaan is characteristic of Syria, where it is a rare surname, Philippines, where it is a very rare surname, and Indonesia. Much less frequently, Blaan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blaan | United Kingdom, Syria, India, Indonesia, Philippines |