Cognomen Demeunynck (Demeunynck 
) , globally, is a very rare family name. The cognomen Demeunynck is habitual in France, where it is a very rare surname, Belgium, and the United States, where it is an extremely rare surname. Very seldom, Demeunynck is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demeunynck | France, Belgium, United States |
| jean-yves demeunynck (b. 1956) |
|
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| martine demeunynck researcher |
|