Family name Robirt Arnaldo (Robirt Arnaldo 
) , in all the world, is an extremely rare surname. The cognomen Robirt Arnaldo is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Also, Robirt Arnaldo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Robirt Arnaldo | Chile |