The Nilufer or Niloufer River (Turkish: Nilüfer Çayı) is a river in Bursa Province, Turkey. From its source near Mount Uludağ (the classical Mysian Olympus) and flowing past the city of Bursa, the river tends to the northwest along its course of 203 kilometres.
In Turkish, nilüfer means water lily. The river may have been named for the flowers or for Nilüfer Hatun, a wife of the Ottoman sultan Orhan. The district of Nilüfer in Bursa Province is named after the river.
