Surname Granto (Granto 
) , in the world, is a very rare cognomen. The family name Granto is characteristic of Georgia, where it is a rare surname, the United States, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Granto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Granto | Philippines, India, Georgia, United States, Nigeria |