Surname Casangu-An (Casangu-An 
) , around the globe, is a very rare cognomen. The cognomen Casangu-An is habitual in South-eastern Asia, particularly Philippines, where it is a very rare surname. Very seldom, Casangu-An is the forename as well as the last name. Parts of the name also exists independently as a last name An.
| VARIANT | COUNTRY |
|---|---|
| Casangu-An | Philippines |