Quinto is a town and municipality in the province of Zaragoza, in the Aragon region of northeast Spain. It lies on the south bank of the river Ebro, roughly 41 kilometres south-east of Zaragoza, the capital city of Aragon.
The municipality covers an area of 118.40 square kilometres and had a population of 1,960 in 2017. Quinto is the capital of the comarca (county) of Ribera Baja del Ebro.