Cognomen Khalfallah (Khalfallah 
, Хальфалла 
) , around the world, is quite a common surname. The cognomen Khalfallah is habitual in Northern Africa, particularly Tunisia, where it is quite a common surname, Algeria, where it is quite a rare surname, and Sudan. Much less frequently, Khalfallah is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Khalfallah | Tunisia, Sudan, Algeria, Egypt, France |
| Хальфалла | Ukraine |
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fahid ben khalfallah Tunisian association football player, TN (b. 1982) |
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| sofiane khalfallah Algerian handball player (b. 1968) |
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| kheira khalfallah Tunisian writer, TN (b. 1972) |
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| olfa khalfallah researcher |
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| adel khalfallah Ph.D. Université Joseph Fourier Grenoble I 2001 |
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| nejmeddine khalfallah (b. 1970) |
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| mohamed khalfallah researcher (ORCID 0000-0002-6105-9300) |
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| zeineb khalfallah Tunisian swimmer, TN (b. 1993) |
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| khalfallah belhaoua DZ (b. 1988) |
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| hicham khalfallah DZ (b. 1991) |
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Mr, Anas, Anis, Arij, Abdo, Amar, Amal, Amir, Amin, Amer, Amel, Amor, Adel, Adem, Adam, Asma, Akim, Aida, Atef, Ayda, Aziz, Azza, Slim, Seif, Safa, Saad, Ms, Med, Ali, Ala, Aya, Ben, Rim, Rym, Eya, Hã, Azmi, Maha, Moez, Mira, Mina, Mimi, Mimo, Sana, Sara, Sami, Said, Saif, Momo, and Afif