Cognomen Finlay-Mulligan (Finlay-Mulligan 
) , throughout the world, is a very rare last name. The surname Finlay-Mulligan is habitual in Ireland, where it is a rare surname, and Australia, where it is a very rare surname. Parts of the name also exists independently as a last name Finlay, and a last name Mulligan.
| VARIANT | COUNTRY |
|---|---|
| Finlay-Mulligan | Ireland, Australia |