Cognomen Walldo (Walldo 
) , in all the world, is a very rare surname. The cognomen Walldo is habitual in Denmark, where it is a rare surname, Nicaragua, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Denmark, Mexico, and the United States. Much less frequently, Walldo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Walldo | Denmark, Nicaragua, Brazil, United States, Mexico |