Last name Houngnon (Houngnon 
) , globally, is a rare cognomen. The surname Houngnon is habitual in Benin, where it is quite a rare surname, Ethiopia, where it is a very rare surname, and France, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Houngnon | Benin, Ethiopia, France |
| paul houngnon researcher, BJ (b. 1943) |
|