Zafar Ahmad Usmani (also known as Zafar Ahmad Thanwi) (Arabic: ظفر أحمد العثماني) (4 October 1892 – 1974), was a 20th Century Sunni Muslim Jurist who became an influential figure of the Hanafi school of Sunni jurisprudence's Deobandi Movement. He also was a prominent Pakistan Movement activist. He is most famous for having written I'la Al-Sunan, written as a refutation by the Hanafi school against the objections raised by the growing Ahl-i Hadith movement, as per the request of his uncle Ashraf Ali Thanwi.