Mujib Rahman Ansari (Persian: مجیبالرحمن انصاری; 1982 – 2 September 2022) was an Afghan mullah and cleric who operated in the western city of Herat. Educated in Saudi Arabia, Ansari was considered to be a Salafist and Wahhabist preacher. An ally of the Taliban, Ansari was a staunch opponent of the Afghan republican government and the presence of foreign soldiers in the country. In the late-2010s, Ansari seized control of a district of Herat, where he established extrajudicial sharia courts and checkpoints operated by his armed enforcers. Ansari was described by a Taliban official as being Afghanistan's most popular religious scholar.