Cognomen Финан (Finan 
, Finnan 
, Финан 
) , around the world, is quite a common surname. The family name Финан is habitual in Ireland, where it is quite a common surname, Lebanon, where it is quite a rare surname, and the United Kingdom. In absolute terms, this name is the most popular in the United States, the United Kingdom, and Ireland. Very seldom, Финан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Finan | United Kingdom, Australia, Indonesia, United States, Ireland |
| Finnan | United Kingdom, Australia, Canada, United States, Ireland |
| Финан | Russia |
| Fynan | United Kingdom, South Africa, United States, Australia |