Family name Dejacques (Dejacques 
) , all around the world, is a very rare cognomen. The family name Dejacques is habitual in France, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, Dejacques is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dejacques | France, Democratic Republic of the Congo, United States |
| claude dejacques (b. 1928) |
|