Surname 亙 (亙 
) , all around the world, is a very rare cognomen. The last name 亙 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. Very seldom, 亙 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 亙 | China |
| 高木 亙 researcher |
|