The Nilufer or Niloufer River () is a river in Bursa Province, Turkey. From its source near Mount UludaÃÂ (the classical Mysian Olympus) and flowing past the city of Bursa, the river tends to the northwest along its course of .
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.
Today, the DoÃÂancñ-1 Dam crosses it.
Writing in the 19th century, John Cramer considered the Nilufer to be the classical Odrysses though noted there were some problems with this. (). C. Foss, in compiling Map 52 for the Barrington Atlas, silently rejects this identification, preferring the modern Kara Dere (Karacay; a left tributary of the Simav_River). Its plain was known as Mygdonia and formed the Persian satrapy of Dascylium. It formerly flowed into the Rhyndacus but now joins the Simav (ancient Macestos) north of Karacabey.