Sheikh Alhaji Mohamed Sanusi Tejan (January 19, 1950 – August 17, 2016) was a revered Sierra Leonean Oku Sunni Muslim preacher, Islamic scholar, Islamic theologist, architect, and the former Chief Imam of the Jamiatul Atiq Masjid. He was also an architect and he was a long term employee of the Sierra Leone Ministry of Works in the 1970s and 1980s during Siaka Stevens and Joseph Saidu Momoh presidencies. However, he later resigned so to concentrate entirely on preaching and spreading the teaching of Islam.