Cognomen Santhru (Santhru 
) , worldwide, is a very rare family name. The surname Santhru is habitual in Saudi Arabia, where it is a very rare surname, Malaysia, and India, where it is an extremely rare surname. Much less frequently, Santhru is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Santhru | India, Malaysia, Saudi Arabia |