• Uthman ibn Affan, third caliph of the Sunni Muslims;
• Osman Hadzic, Bosnian folk singer.
• Uthman Abu Qahafa was Abu Bakr's father
• Uthman ibn Ali, brother of Abbas, was among the List of casualties at the Battle of Karbala
• Uthman al-Asghar, was one of the sons of Ali ibn Abi Talib
• Uthman al-Akbar, was one of the sons of Ali ibn Abi Talib
• Uthman ibn Naissa, was a Berber Wāli of Narbonne and effective Muslim governor of Septimania.
• Osman I
• Uthman I, a Marinid caliph
• Usman dan Fodio, African leader also known as Shehu Uthman Dan Fuduye
• Uthman Abdul Rahim Mohammed Uthman, a Yemeni who is in extrajudicial detention in Guantanamo Bay
• Usman Afzaal, is an English cricketer
• Usman Khawaja is an Australian cricketer
• Osman Nuri Paşa, was an Ottoman Turkish field marshal
• Osman Pazvantoğlu, was a Bosnian Ottoman soldier, governor and rebel against Ottoman rule
• Topal Osman Pasha, was a Grand Vizier in the Ottoman Empire
• Al-Aziz Uthman, was the second son of Saladin and the second Ayyubid Sultan of Egypt
• Ibn al-Salah, was a Kurdish Shafi'i hadith specialist
• Othman Saat, was a former Chief Minister of the state of Johor in Malaysia.
• Aziz M. Osman is a Malaysian actor and director.
• Azalina Othman Said was a Tourism Minister of Malaysia
• Alisher Usmanov, a Russian based billionaire of Uzbek origin
• Ospan Batyr, a Kazakh freedom fighter in Xinjiang
• Osman Đikić, was a Bosniak poet, and dramatist
• Osman Ahmed Osman, was a famous and influential Egyptian engineer, contractor, entrepreneur, and politician.
• Osman Jama Ali, is a Somali politician.
• Osman Ali Atto, is a Somali warlord
• Aden Abdullah Osman Daar, was a Somali politician and the country's first President
• Osman Yusuf Kenadid, was a Somali poet and ruler.
• Osman Baydemir, a Turkish politician, lawyer and human rights activist in east Turkey, of Kurdish origin.
• Ousmane N'Doye, is a Senegalese football player.
• Ousmane Dabo, is a French football midfielder who currently plays for S.S. Lazio.
• Ousmane Issoufi Maïga, was the Prime Minister of Mali from 2004 to 2007.
• Ousmane Sembène, was a Senegalese film director, producer and writer.
• Ousmane Sanou, is a Burkina Faso football player
• Ousman Jallow, is a Gambian football striker
• Ousmane Traoré, is a Burkinabé football player
• Ousmane Zongo, was a Burkinabè arts trader living in New York City.
• Ousmane Viera, is an Ivorian football player
• Ousmane Tanor Dieng, is the First Secretary of the Socialist Party of Senegal.
• Ousmane N'Gom Camara, is a Guinean football player
• Tuanku Sultan Otteman II, was a former Sultan of Deli
• Kara Yülük Osman, was a late 14th and early 15th century leader of the Turkmen tribal federation of Ak Koyunlu.
• Muhammad Osman Said, was Prime Minister of Libya from 17 October 1960-19 March 1963.
• Mahamane Ousmane, was the first democratically elected President of Niger.
• Osman Ahmed was a Somali ruler, and the fifth Sultan of the Gobroon Dynasty
• Osman I of the Maldives was the Sultan of the Maldives during 1377
• Osman II of the Maldives was the Sultan of Maldives from 1420-1421
• Uthman ibn Ali was the sixth leader of the Husainid Dynasty and the ruler of Tunisia briefly in 1814.

Other

• Uthman Qur'an
• Usman Institute of Technology
• Usmanu Danfodio University
• Osmanya script