Last name 도건 (도건 
, Dorgan 
) , across the world, is quite a rare family name. The family name 도건 is habitual in Ireland, where it is quite a common surname, Moldova, where it is quite a rare surname, and New Zealand, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Ireland, and the United Kingdom. Very seldom, 도건 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 도건 | South Korea |
| Dorgan | Democratic Republic of the Congo, United Kingdom, Ireland, Argentina, United States |