The Luo River is a tributary of the Yellow River in China. It rises in the southeast flank of Huashan in Shaanxi province and flows east into Henan province, where it eventually joins the Yellow River at the city of Gongyi. The river's total length is 420 km.
Although not a major river by most standards, it flows through an area of great archaeological significance in the early history of China. Principal cities or prefectures located on the river include Lushi, Luoning, , Luoyang, Yanshi, and Gongyi. The Luo's main tributary is the , which joins it at Yanshi.
During the era of the Three Kingdoms, Cao Zhi wrote a famous poem to the goddess of the Luo River as an indirect expression of love for a deceased lover .