Family name رجب (Recep 
, رجب 
, Rajab 
, among others...) , in all the world, is a widespread last name. The cognomen رجب is characteristic of Egypt, where it is a common surname, Bahrain, and Libya (explore the name in all countries). Not in comparison with a country's population, it is commonest in Egypt, Syria, and Saudi Arabia. Also, رجب is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Recep | Saudi Arabia, Egypt, Turkey, Malaysia, Germany |
| رجب | Iraq, Egypt, Sudan, Syria, Iran |
| Rajab | Egypt, Tanzania, Turkey, India, Pakistan |
| Ragab | Saudi Arabia, Egypt, Turkey, India, Indonesia |
| Rejeb | Saudi Arabia, Tunisia, Malaysia, United Arab Emirates, Indonesia |
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عمر الفاروق السيد رجب Egyptian academic, EG (b. 1942) |
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سيد رجب Egyptian actor, EG (b. 1950) |
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| حسن رجب Egyptian footballer (1909-1973), EG (b. 1909) |
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نبيل رجب Bahraini human rights activist, Bahraini opposition leader., BH (b. 1964) |
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| عبد الله رجب Sudanese journalist, SD (b. 1915) |
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مروان رجب Egyptian handball coach, EG (b. 1974) |
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| احمد رجب Egyptian satirist, EG (b. 1928) |
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| إبراهيم رجب EG (b. 1918) |
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| إبراهيم رجب Egyptian composer (1931-2017), EG (b. 1931) |
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| صلاح رجب Egyptian drummer and musician, EG (b. 1935) |
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| محمد الزروق رجب Prime Minister of Libya, LY (b. 1940) |
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محمد رجب Egyptian folk singer, EG (b. 1998) |
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| سارة رجب Tunisian engineer and politician, TN (b. 1959) |
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| حسن رجب actor, AE (b. 1961) |
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| بسام رجب Egyptian actor, EG (b. 1962) |
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