Last name 岩亨 (岩亨 
) , in all the world, is a very rare family name. The family name 岩亨 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 岩亨 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 岩亨 | China |