Fatma Emetullah Sultan (Ottoman Turkish: امت الله فاطمه سلطان, lit.
'"One who abstains" and "servant of Allah"'; c. 1679, Edirne or Constantinople - 13 December 1700, Constantinople) was an Ottoman princess, the daughter of Mehmed IV and his Haseki Emetullah Rabia Gülnuş Sultan.
She was the sister of Sultans Mustafa II and Ahmed III.
Her brother, Mustafa II, married her to Tırnakçı Çerkes Ibrahim Pasha in September 1695; whom he first granted the rank of deputy of Silistre, then later executed, in September 1697.
She was buried in the Turhan Sultan Mosque, her paternal grandmother, next to her father.