Surname Saiwi (Saiwi 
) , around the globe, is a very rare cognomen. The cognomen Saiwi is habitual in Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Much less frequently, Saiwi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saiwi | India, Brazil, Malaysia |