Surname Santosu (Santosu 
) , all around the world, is a very rare cognomen. The family name Santosu is characteristic of Malaysia, where it is a very rare surname, Brazil, where it is an extremely rare surname, and India. More prevalently, Santosu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Santosu | India, United States, Brazil, Malaysia |