Agios Ioannis is located between the settlements of Kalyvos and Agios Mamas at an altitude of 430m and is 40 km from from Rethymnon. It is a designated traditional settlement. Its name probably comes from the homonymous church of Agios Ioannis Chrysostomos. Its history begins in the Byzantine period. In the central part of the village, the barn of a large landowner of the wider area is preserved. An Ottoman inscription is preserved above its outer door, where the owner and owner, Mustafa Agas, and the date August 29, 1792 are written. It is a large building complex that includes the residence and many auxiliary spaces.
Three churches are preserved in the village. The central church of the village is dedicated to Agios Ioannis Chrysostomos whose iconostasis bears the date 1863. In the village cemetery is the church of Agios Georgios whose iconostasis according to an inscription was completed in 1865. At the northeastern end of the settlement there is a Byzantine church dedicated to the Dormition of the Virgin. The interior is decorated with frescoes dating from around 1300. In the niche of the sanctuary, a fragmentary inscription is preserved, where the name of the church, Panagia i Phaneromeni, of the emperor during whose reign the church was built, Angelos Komnenos Andronikos Palaiologos, the surname Kaliergis, which refers to the well-known family of Kallergos, and the name Theodoros Daniel, the painter who painted the temple.
