Last name Dejax (Dejax 
) , in the entire world, is a very rare cognomen. The family name Dejax is habitual in France, where it is a rare surname, Canada, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Dejax is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dejax | Canada, France, Brazil, United States |
| jean joseph dejax FR (b. 1776) |
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| pierre j. dejax Ph.D. Cornell University 1977 |
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