Family name Dang-Gaan (Dang-Gaan 
) , in the world, is an extremely rare cognomen. Much more prevalently, Dang-Gaan is the forename as well as the last name. Parts of the name also exists independently as a last name Dang, and a last name Gaan.
| VARIANT | COUNTRY |
|---|---|
| Dang-Gaan | Philippines |