Ummi Sultan (Ottoman Turkish  ; an haife ta a ranar 10 ga watan Mayun shekara ta 1720) gimbiya ce 'yar Ottoman,' yar Sultan Mehmed na hudu, da matarsa Gülnuş Sultan . Ta kasance 'yar'uwar Sarakunan Mustafa II da Ahmed III. Ümmi Sultan diya ce ga Mehmed IV da Gülnuş Sultan, ba a san ranar haihuwarta ba, Sakaoğlu ya ce kafin shekara ta 1680 ne, ita ce ƙaramar yar Mehmed IV da matarsa. Tana da yaya biyu Mustafa II da Ahmed III da kuma mata biyu Hatice Sultan da Fatma Sultan. Tunda yayanta Hatice Sultan da Fatma Sultan sun yi aure a cikin shekara ta 1675, a lokacin tana jaririya don haka aurenta bai yi ba. An cire mahaifinta a shekara ta 1687, don haka bai iya shirya mata aure ba. Don haka kawun nata wanda ke matukar kaunarta, Sultan Ahmed II ya shirya aurenta da Silahdar Çerkes Osman Pasha. An yi bikin auren a ranar 13 ga watan Janairun shekara ta 1694 a Fadar Edirne. An tsayar da sadakinta zuwa kuruş 600,000. Har ila yau bikin ya samu halartar hadimiyar Sultan Ahmed Rabia Sultan .