The Fuyi River, also known as Luojiang River (罗江), Fuyijiang (夫夷江) and Fuyihe (夫夷河) is a river in China's Guangxi and Hunan provinces. It is one of the largest tributaries of the Zi River. Fuyi River is 352.6 km (219.1 mi) long and has a drainage basin of 6,692 km2 (2,584 mi2). The river's origin is within Cat Mountain (猫儿山), in Guangxi.