Surname Niphonh (Niphonh 
) , in the world, is an extremely rare cognomen. Much more prevalently, Niphonh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Niphonh | Laos, United States, Canada |
Kheusouvanh, Kheuasouvanh, Suvanvong, Phetbourom, Vongkaysone, Watcharine, Sitthiphong, and Soumphonphakdy