Surname الحسن (Hassan 
, Hasan , Alhassan , and others...) , around the world, is a prevalent last name. The cognomen الحسن is habitual in Bahrain, where it is a prevalent surname, Maldives, and Somalia (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Bangladesh, Egypt, and Nigeria. Also, الحسن is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Alhassan, Hasan, Hassan | Egypt, Nigeria, Bangladesh, Pakistan, Turkey |
| الحسن | Egypt, Syria, Sudan, Iraq, Saudi Arabia |
| Alassane | Egypt, Nigeria, Sudan, Morocco, Saudi Arabia |
| Alhassane | Bangladesh, Nigeria, Morocco, Iraq, Saudi Arabia |
| Al-Hassan | Egypt, Malaysia, Nigeria, Bangladesh, Pakistan |
| Al-Hasan | Egypt, Nigeria, Bangladesh, Indonesia, India |
Abulhassan, Alhasan, Lahcen, Morocco, and Альхассан
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الحسن بن علي Grandson of Muhammad (625–670), SA (b. 624) |
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الحسن البصري Arab Muslim scholar, theologian, preacher and judge (c.642–728), SA (b. 642) |
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الحسن المثنى Islamic scholar and theologian (c. 661–715), SA (b. 650) |
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الحسن المثلث SA (b. 695) |
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الحسن بن زيد بن محمد emir of Tabaristan, SA (b. 750) |
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| فاطمة بنت الحسن Daughter of Fourth Twelver IMam, SA (b. 700) |
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| الحسن بن صالح بن حي 8th Century Shia theologian, KW (b. 710) |
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نفيسة بنت الحسن Muslim scholar, SA (b. 762) |
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الحسن بن علي العسكري Eleventh of the Twelve Shia Imams, SA (b. 846) |
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| الحسن الأعصم tenth century military leader, SA (b. 891) |
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| الحسن بن أحمد بن عبد الغفَّار بن مُحمَّد بن سُلیمان بن آبان الفارسي leading grammarian of the school of al-Baṣrah, IR (b. 900) |
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| الحسن بن إبراهيم بن زولاق الليثي A Muslim historian who lived during the Abbasid era (b. 919) |
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| الحسن بن عمار politician, EG (b. 950) |
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| الحسن بن يُوسُف بن مكزون بن خضر بن عبد الله بن مُحمَّد السنجاري Syrian Alawite military figure, SY (b. 1187) |
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| الحسن بن عُمر بن حسن بن حبيب الدمشقي الحلبي Syrian faqih, writer and poet, SY (b. 1310) |
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