Last name Виардо (Viardo 
, Viardot 
, Виардо 
) , in all the world, is quite a rare cognomen. The cognomen Виардо is characteristic of France, where it is quite a rare surname, Switzerland, where it is a rare surname, and United Arab Emirates. Not in comparison with a country's population, it is the most numerous in France, Philippines, and Germany. Much less frequently, Виардо is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Viardo | United Arab Emirates, Italy, Philippines, United States, France |
| Viardot | Germany, Austria, Switzerland, United States, France |
| Виардо | Russia |
| виардо, владимир владимирович Russian pianist, RU (b. 1949) |
|