Family name Mostefaï (Mostefai 
, Mostefaï ) , all over the world, is quite a rare surname. The cognomen Mostefaï is characteristic of Algeria, where it is quite a rare surname, France, where it is a rare surname, and Canada, where it is a very rare surname. Very seldom, Mostefaï is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mostefai | Morocco, France, Canada, United States, Algeria |
| Mostefaï | France, Algeria |
| el-hadi mostefaï French politician (1894-1980), DZ (b. 1894) |
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| chawki mostefaï French politician (1919-2016), DZ (b. 1919) |
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| ismaël omar mostefaï French terrorist (1985-2015), FR (b. 1985) |
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