Around the globe, 岩亘 (岩亘 
) is a very rare boy's given name. The first name 岩亘 is habitual in Eastern Asia, particularly China, where it is an extremely rare male name. Much less frequently, 岩亘 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 岩亘 | China |