Cognomen Chanzo (Chanzo 
, Planus 
) , globally, is a rare last name. The last name Chanzo is habitual in France, where it is a rare surname, Belgium, where it is a very rare surname, and Tanzania. Much less frequently, Chanzo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chanzo | Philippines, United States, Tanzania |
| Planus | Brazil, France, Chile, Belgium, Germany |