The Záncara is a 168 km long river in Castile-La Mancha, Spain. It is a tributary to the Guadiana. Its source is near the village Abia de la Obispalía, west of Cuenca, in the Iberian System. The Záncara flows southwest, along the town of Socuéllamos. Its main tributaries are the Rus, Saona and Córcoles.
It flows into the Cigüela from the left near the Ojos del Guadiana, Villarrubia de los Ojos municipal term. There are authors though that claim that it is the Cigüela that flows into the Záncara.
