Family name Fagniart (Fagniart 
) , worldwide, is a very rare surname. The cognomen Fagniart is habitual in Western Europe, particularly Belgium, where it is a rare surname, and France, where it is a very rare surname. Much less frequently, Fagniart is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fagniart | France, Belgium, Spain |