Ejea de los Caballeros (Spanish: [eˈxea ðe los kaβaˈʎeɾos]; Aragonese: Exeya d'os Caballers), commonly known simply as Ejea, is a town and municipality in the province of Zaragoza, part of the autonomous community of Aragon, Spain.

It is one of the five main towns in the Comarca de las Cinco Villas (lit.

The town became part of the medieval Kingdom of Aragon in 1105 during the Spanish Reconquista, as Muslim rule in the region was receding.

The town retains many medieval buildings, including: The municipality of Ejea de los Caballeros comprises nine different centres of population: Rivas and Farasdués are two historic villages that have been dependencies of Ejea for decades.

The other six centres were built in the 1950s and 1960s in order to settle inhabitants and farmers to grow irrigation crops, following the construction of the Yesa Reservoir and Bardenas irrigation channel that brought water to these villages, among others (Sádaba, Tauste, and others).