Nizamuddin Sihalivi Qadari Ansari (Urdu: نظام الدین سہالوی) was the founder and designer of the Dars-i Nizami curriculum used in many Asian madrassas. He was born in Sihali a Village in Fatehpur Block in Barabanki District of Uttar Pradesh now in India, on 27 March 1677 then migrated to Firangi Mahal Lukhnow.His father was Mulla Qatubdeen.He was a disciple of Shah Abdul Razzaq Bansvi in silsala Qadiriyya. He was a descendant of Abu Ayyub al-Ansari.