Family name Aatto (Adolf 
, Afton 
, Aatto 
) , in all the world, is a common cognomen. The surname Aatto is habitual in Poland, where it is quite a common surname, Liechtenstein, and Namibia (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Poland, Tanzania, and Germany. More prevalently, Aatto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Adolf | Germany, Indonesia, Czechia, Poland, Tanzania |
| Afton | Spain, Indonesia, Philippines, United States, South Africa |
| Aatto | India, Finland, United States, Nigeria |