Surname 伊根 (Egan 
, Eagan , Eagen 
) , all over the world, is a common family name. The family name 伊根 is characteristic of Ireland, where it is a common surname, Australia, where it is quite a common surname, and Jersey (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in the United States, Ireland, and the United Kingdom. Very seldom, 伊根 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Eagan, Egan | United Kingdom, Ireland, Canada, Australia, United States |
| Eagen | United Kingdom, Canada, Australia, New Zealand, United States |
| 伊根 | China |