Cognomen Hag-Tongan (Hag-Tongan 
) , all over the world, is an extremely rare family name. The surname Hag-Tongan is characteristic of South-eastern Asia, particularly Philippines, where it is an extremely rare surname. Parts of the name also exists independently as a last name Hag.
| VARIANT | COUNTRY |
|---|---|
| Hag-Tongan | Philippines |