Cognomen Daggan (Daggan 
) , worldwide, is a very rare surname. The cognomen Daggan is habitual in Israel, where it is a very rare surname, the United States, where it is an extremely rare surname, and Philippines. Also, Daggan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Daggan | India, Israel, United States, Philippines |