Muhammad Muslehuddin Siddiqui (27 December 1918 – 23 March 1983) (Urdu محمد مصلح الدین صدیقى), was a preacher born in Nanded on India's Deccan Plateau.

[2] On the suggestion of Muhammad Abdul Aziz Muhaddis Mubarakpuri, in 1935 at the age of 17 years he went to Darul-uloom Ashrafiya in Mubarakpur, Azamgarh, Uttar Pradesh, where he studied fiqh, hadith and other Islamic subjects.

[3] At the age of 29, in 1946, Muhammad Amjad Ali Azami conferred khilafah upon him thus giving him permission to speak on behalf of the Qadiriyya Order.

[4] During the Pakistan Movement, Siddiqui was among the scholars who sided with Muhammad Ali Jinnah and the Muslim League, on the platform of "All India Sunni Conference" held at Banaras in 1946.

[6][7] On the 7th day of Jumada al-Thani 1403 AH, corresponding to 23 March 1983, at noon, he felt ill, and died in the ambulance en route to the hospital due to a heart attack at the age of 67 years.