Surname Onsalves (Onsalves 
) , around the world, is a very rare family name. The surname Onsalves is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. Also, Onsalves is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onsalves | China |
Ghonçalves, and Onçalves