Family name Janvion (Janvion 
) , all over the world, is a rare cognomen. The surname Janvion is habitual in France, where it is a rare surname, the United States, where it is an extremely rare surname, and Brazil. More frequently, Janvion is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janvion | France, Democratic Republic of the Congo, Brazil, United States, Cameroon |
|
émile janvion French activist and trade unionist, FR (b. 1866) |
|
|
gérard janvion French association football player, FR (b. 1953) |
|