Surname Sapiaín (Sapiaín 
) , across the world, is an extremely rare family name. The last name Sapiaín is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sapiaín | Chile |
| claudio sapiaín Chilean director and scriptwriter, CL (b. 1948) |
|