Last name William Jhonson (William Jhonson 
) , in the entire world, is an extremely rare family name. The last name William Jhonson is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More frequently, William Jhonson is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| William Jhonson | Chile, Spain, Peru, Ecuador |