Family name Deffis (Deffis 
) , throughout the world, is a rare last name. The family name Deffis is characteristic of Argentina, where it is a rare surname, France, and Mexico, where it is a very rare surname. Very seldom, Deffis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deffis | Mexico, Argentina, France, Spain |
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armand deffis French soldier, politician and officer (1827-1892), FR (b. 1827) |
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| françois xavier deffis FR (b. 1838) |
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| jean-pierre deffis (b. 1948) |
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| emilia inés deffis university professor, CA |
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Mr, Ester, Martin, Manuel, Monica, Silvia, Susana, Sergio, Sophie, Angela, Arnaud, Romane, Romina, Roxana, Daniel, Gaston, Noelia, Nelida, Haydee, Hector, Victor, Yanina, Elida, Norma, Nilda, Nadia, Ana, Adam, Axel, Raul, Rosa, Rita, Rito, Gaby, Luis, Juan, Yesica, Ines, Maria, Mario, Marta, Mabel, Andre, Karen, Delia, Lucia, Lucas, Jorge, Irma, and Mariana