Cognomen Dagatan (Dagatan 
) , in the world, is quite a common family name. The last name Dagatan is habitual in Philippines, where it is quite a rare surname, Kuwait, where it is a rare surname, and United Arab Emirates. Measured by absolute frequency, the name is most common in Philippines, United Arab Emirates, and Saudi Arabia.
| VARIANT | COUNTRY |
|---|---|
| Dagatan | Saudi Arabia, Kuwait, United States, United Arab Emirates, Philippines |