The Mustafakemalpaşa River, Orhaneli River or Adirnaz River (Turkish: Mustafakemalpaşa Çayı, Orhaneli Çayı or Adırnaz Çayı) is a river in northwestern Anatolia in the Bursa Province of Turkey\’s Marmara Region. It is named for the city of Mustafakemalpaşa which lies near its delta onto Lake Uluabat.
