Bab Mansur al-'Alj or Bab Mansour is a monumental gate in the city of Meknes, Morocco. Located on the south side of Place el-Hedim in the old city, it was originally the main ceremonial entrance to the Kasbah of Sultan Moulay Isma'il, built in the late 17th and early 18th centuries. Today it is one of the most famous and admired landmarks in the city.