Surname Geirin (Geirin 
) , globally, is a very rare last name. The cognomen Geirin is characteristic of Japan, where it is a very rare surname, Honduras, and Venezuela, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Japan, the United States, and Honduras. Very seldom, Geirin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Geirin | Japan, Spain, Honduras, Venezuela, United States |