Surname Irvain (Irvain 
) , around the world, is an extremely rare last name. The last name Irvain is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Irvain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Irvain | Democratic Republic of the Congo, United States |