Hafsah Diyar Umar ( Arabic  ; c. 605-665) ta kasance matar Annabin Musulunci Muhammadu saboda haka Uwar Muminaice. Hafsah 'yar Umar dan Khattab ce da Zainab diyar Madh'uwn.An haife ta "lokacin Quraishawa suna gina Gida [ Ka'abah ],shekaru biyar kafin aiko Annabi," watau a shekara ta 605. . Ta yi aure da Khunais bn Hudhaifah amma ta zama bazawara a watan Agusta 624. Bayan da Hafsah ta gama idda, mahaifinta Umar ya mika hannu ga Uthman Ibn 'Affan, bayan haka kuma ga Abubakar ; amma dukansu sun ƙi ta. Lokacin da Umar ya je wurin Muhammad don yin gunaguni game da wannan, Muhammad ya amsa, "Allah zai auri Uthman ya fi 'yar ku kuma zai aurar da' yar ku fiye da Uthman." Muhammad (SAW) ya auri Hafsah a Shaaban AH 3 (a ƙarshen Janairu ko a farkon Fabrairu 625). Wannan aure "ya ba wa Annabi damar danganta kansa da mabiyansa masu aminci," watau Umar, wanda yanzu ya kasance surukinsa. Uthman dan Affan, lokacin da ya zama Halifa, ya yi amfani da kwafin Hafsah lokacin da ya daidaita rubutun Kur'ani.