Surname Leirin (Leirin 
) , in the world, is an extremely rare last name. The cognomen Leirin is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Honduras, and Argentina, where it is an extremely rare surname. More frequently, Leirin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Leirin | South Africa, Argentina, Venezuela, Nicaragua, United States |