Family name Allagui (Allagui 
) , across the world, is quite a rare cognomen. The cognomen Allagui is habitual in Tunisia, where it is quite a common surname, Qatar, where it is quite a rare surname, and Libya, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Tunisia, France, and Algeria. Very seldom, Allagui is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Allagui | Tunisia, Libya, France, Algeria, Morocco |
| abdelkrim allagui Tunisian historian, TN |
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| mohamed béchir allagui Tunisian researcher, TN |
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| anis allagui researcher |
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| slim allagui |
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| ilhem allagui |
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Si, Abir, Amal, Amir, Amin, Amel, Amen, Amor, Amna, Adel, Adem, Adam, Asma, Aida, Atef, Ayda, Aziz, Azer, Azmi, Afef, Baya, Baha, Arbi, Anis, Alaa, Alia, Med, Sif, Ali, Ala, Rim, Tej, Eya, Hos, Maya, Maha, Beji, Moez, Sana, Sami, Samy, Said, Saif, Sayf, Safa, Seif, Slah, Slim, Mido, and Kais