Family name Hong-Hong (Hong-Hong 
) , throughout the world, is an extremely rare surname. The cognomen Hong-Hong 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 Hong, and a last name Hong.
| VARIANT | COUNTRY |
|---|---|
| Hong-Hong | Philippines |
| hong-hong pei researcher (ORCID 0000-0002-9800-3140) |
|
|
| hong-hong pei researcher (ORCID 0000-0002-1513-0436) |
|
|
| hong-hong zhang researcher (ORCID 0000-0002-6979-9020) |
|