Cognomen Duvalin (Duvalin 
, Дувалин 
) , throughout the world, is a rare last name. The family name Duvalin is habitual in Russia, where it is a rare surname, Kyrgyzstan, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Likewise, Duvalin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duvalin | Democratic Republic of the Congo, United States, Mexico |
| Дувалин | Ukraine, Kyrgyzstan, Russia |