Raziyyat-Ud-Dunya Wa Ud-Din (Persian: سلطان رضیه الدنیا والدین) (c. 1205 - 15 October 1240, r. 1236–1240), popularly known as Razia Sultana, was a ruler of the Delhi Sultanate in the northern part of the Indian subcontinent. She was the first female Muslim ruler of the subcontinent, and the only female Muslim ruler of Delhi.