Surname Robertsan (Robertsan 
) , in the entire world, is a very rare cognomen. The family name Robertsan is characteristic of Bulgaria, where it is a rare surname, Germany, where it is an extremely rare surname, and India. Likewise, Robertsan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Robertsan | Germany, Philippines, Bulgaria, India, Myanmar |