Shaikh Ahmad Sarhindi was a 16th-17th century Islamic scholar who worked to strengthen Islam and Muslim nationalism in Mughal India. He opposed Akbar's syncretic Deen-e-Illahi movement and the philosophy of Wahdat-ul-Wajud. Through his disciples, correspondence with scholars, and influence on nobles, he advocated for strict adherence to Islamic principles and Sunnah. His efforts helped transform the Mughal administration from Akbar's liberalism to Aurangzeb's orthodoxy. He is considered one of the founders of Pakistani nationalism and Muslim separatism in South Asia.