沁河，黄河的一条支流，发源于山西省沁源县霍山，流经山西省沁源县、安泽县、沁水县、阳城县、泽州县、河南省济源市、沁阳市、武陟县，于武陟县境内注入黄河，全长450千米。

The Qin River (Chinese:沁河; pinyin:Qìn Hé; Wade–Giles:Ch'in Ho) is a tributary of the lower Yellow River (Huang He) in southeast Shanxi province, China. It begins in Qinyuan county, Shanxi and in Wuzhi county of Henan province joins the Yellow River.

The river is 485 km long and has a catchment area of 13,500 square kilometers. Its largest tributary is the Dan He 丹河.