Uthman ibn Affan (larabci: عثمان بن عفان‎), Usman, Osman, Uthman. ya kasan ce yayi rayuwa daga shekara ta (579 zuwa 17 Yunin 656). An kuma haife shi ne a shekara ta 579 (42 BH) wanda ke garin ɗaif, dake a Saudiya, ya kuma rasu ne a shekara ta 17 ga watan wanda tayi dai dai da (17 Dhūl Al-Qa‘dah 35 AH) (shekara ta 656 ) (ya rayu tsawon shekaru 77) an birne shi ne a garin Madinah, wanda ake kira Jannatu al-Baqi dake Madinah. Yakasance sirikin Manzon Allah , tsira da aminci su tabbata agareshi, Halifan Musulunci na Uku, Ɗaya daga cikin Halifofi shiryayyu, ɗan zuri'ar Banu Umayyah daga ƙabilar Kurayshawa. Sanda Sayyidina Umar yarasu da shekaru 59/60, ʿUthmān, yana da shekaru 64/65 a duniya sai ya gaji Umar bin Khaddab bayan rasuwarsa. Uthman ibn Affan Yayi Halifanci daga 6 ga watan Nuwamba shekara ta 644 zuwa 17 ga watan Yuni shekara ta 656. Ƙarƙashin jagorancin Uthman, Khalifancin Rashidun ya faɗaɗa zuwa Fars ( Iran ta yau) a cikin 650, da wasu yankuna na Khorāsān ( Afganistan a yau) a shekara ta 651.