Shaihu Usman dan Fodio () (also referred to as Shaikh Usman Ibn Fodio, Shehu Uthman Dan Fuduye, or Shehu Usman dan Fodio, 1754–1817) was a writer, preacher, Islamic reformer and Sultan of Sokoto. Dan Fodio was one of a class of urbanized ethnic Fulani living in the Hausa city-states in what is today northern Nigeria. He lived in the city-state of Gobir, and is considered an Islamic revivalist; he encouraged the education of women in religious matters, and several of his daughters emerged as scholars and writers (with the most prominent of them being the Princess Nana Asmau).