The Valenciano River is a river in eastern Puerto Rico. It flows in a northwestern direction from its source, and the only settlement which it flows through is the city of Juncos. After Juncos, the river reaches a confluence on the left bank of the Río Gurabo, which is itself a tributary of the Río Grande de Loíza which flows north into the Atlantic Ocean. The river's name means Valencian River in Spanish, and Juncos is known as La Ciudad del Valenciano (The Valencian's City) or Los Mulos del Valenciano (The Valencian's Mules).