Cognomen عثمان (Usman 
, Osman , عثمان 
, among others...) , around the globe, is a prevalent family name. The cognomen عثمان is characteristic of Sudan, where it is a prevalent surname, Malaysia, where it is a widespread surname, and Nigeria (explore the name in all countries). Measured by absolute frequency, it is commonest in Nigeria, Sudan, and Egypt. Likewise, عثمان is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Usman, Osman, Othman | Malaysia, Nigeria, Sudan, Pakistan, Turkey |
| عثمان | Egypt, Syria, Sudan, Iraq, Saudi Arabia |
| Ousmane | Egypt, Malaysia, Nigeria, Sudan, Turkey |
| Otman | Egypt, Malaysia, Nigeria, Pakistan, Turkey |
| Uthman | Egypt, Malaysia, Nigeria, Sudan, India |
| Ottman | Malaysia, Nigeria, Syria, Indonesia, Morocco |
Asaf, Athman, Athmane, Athuman, Athumani, Bosniak, Daar, Ii, Ohman, Osmanas, Osmane, Osmani, Osmans, Osmany, Ospan, Othmane, Othmani, Otmane, Ottoman, Ousman, Usmon, Οσμάν, Асман, Атуман, Осман, Оспан, Отман, Усман, Утман, אוסמן, עות'מאן, اوزمن, اوسمان, उसमान, উসমান, ওসমান, ウスマン, and 奥斯曼
| عثمان بن عفان 3rd Rashidun Caliph (r. 644–656), SA (b. 574) |
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| شماس بن عثمان Sahaba, SA (b. 591) |
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| عثمان بن علي بن أبي طالب Son of ʿAlī ibn Abī Ṭālib (died 680), IQ (b. 647) |
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| العزيز عماد الدين عثمان Ayyubid Sultan of Egypt 1171-1198, EG (b. 1171) |
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أبو الحسن علي بن عثمان Moroccan Marinid sultan (c.1297–1351), MA (b. 1297) |
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| عثمان داي Dey of Tunis (b. 1505) |
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عثمان ثانى Sultan of the Ottoman Empire, TR (b. 1604) |
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حافظ عثمان Ottoman calligrapher, TR (b. 1642) |
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| عثمان باي Bey of Tunis (1763-1814), TN (b. 1763) |
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| عثمان بن سند KW (b. 1767) |
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| عثمان بن بشر Saudi Arabian historian, SA (b. 1780) |
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عثمان دقنة Sudanese military commander (1836-1926), SD (b. 1836) |
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أحمد عثمان Iraqi politician, IQ (b. 1879) |
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عثمان علی خان Last ruler of the Princely State of Hyderabad (1886-1967), IN (b. 1886) |
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مختار عثمان Egyptian actor (1898-1964), EG (b. 1898) |
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