Mazhar ul Islam, meaning "light of Islam", may refer to:
Muzharul Islam (1923–2012), Bangladeshi architect Mazharul Islam (poet) (1929–2003), Bangladeshi poet and academic Mazhar ul Islam (born 1949), Pakistani short story writer and novelist Mazhar-ul-Islam (cricketer) (1950s–1978), Bangladeshi cricketer Mazharul Islam Himel (born 1988), Bangladeshi footballer Mazharul Islam Suzon, Bangladeshi politician