Surname 达根 (Dagen 
, 达根 , Dargan 
) , throughout the world, is quite a common family name. The surname 达根 is habitual in Jersey, where it is quite a common surname, Ireland, where it is quite a rare surname, and Australia. Measured by absolute frequency, it is the most numerous in the United States, India, and the United Kingdom. Much less frequently, 达根 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dagen | China, Ethiopia, United States, United Kingdom, India |
| 达根 | China |
| Dargan | Ireland, Australia, United States, United Kingdom, India |