Sayyid Muḥammad Ṣiddīq Ḥasan Khān al-Qannawjī (14 October 1832 – 26 May 1890) was an Islamic scholar and leader of India's Muslim community in the 19th century, often considered to be the most important Muslim scholar of the Bhopal State. He is largely credited alongside Syed Nazeer Husain with founding the revivalist Ahl-i Hadith movement, which became the dominant strain of Sunni Islam throughout the immediate region. Siddiq Hasan Khan was also a prominent scholarly authority of the Arab Salafiyya movement of the late 19th and early 20th centuries.