Last name Houessou (Houssou 
, Houessou 
) , in the entire world, is a common family name. The cognomen Houessou is characteristic of Sub-Saharan Africa, particularly Benin, where it is quite a common surname, Gabon, and Ivory Coast, where it is quite a rare surname. In absolute terms, it is the most numerous in Sub-Saharan Africa, particularly Benin, Ethiopia, and Ivory Coast. Much less frequently, Houessou is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Houssou | Togo, Algeria, Ethiopia, Benin, Ivory Coast |
| Houessou | Togo, Ethiopia, France, Benin, Ivory Coast |