Beyà Âehir () is a municipality and district of Konya Province, Turkey. Its area is 2,054 km<sup>2</sup>, and its population is 77,690 (2022). The town is located on the southeastern shore of Lake Beyà Âehir and is marked to the west and the southwest by the steep lines and forests of the Taurus Mountains, while a fertile plain, an extension of the lake area, extends in the southeastern direction.
The Hittite monument situated in Beyà Âehir's depending locality of Eflatunpñnar, at a short distance to the northeast from the town, proves that the Hittite Empire had reached as far as the region, marking in fact, in the light of present knowledge, the limits of their extension to the southwest. Evidence points out that an earlier settlement, perhaps dating back to the Neolithic Age, was also located in Eflatunpñnar. Another important early settlement was located in Erbaba Höyük, situated to the southwest of Beyà Âehir, and which was explored by the Canadian archaeologists Jacques and Louise Alpes Bordaz in the 1970s, leading to finds from three neolithic building layers.
The Beyà Âehir region corresponds to classical antiquity's Pisidia. At the location of the town itself there was in all likelihood a Greek city, which in one view was probably named Karallia, which was one of the two urban centers that surrounded the lake at the time, and in Roman times was known as Claudiocaesarea (, Klaudiokaisareia), and Mistheia () in Byzantine times. Another theory is that Beyà Âehir's site corresponds to that of Casae (ÃÂá¼ÂÃÂñù), the seat of a Christian diocese of the Roman province of Pamphylia, which under Roman rule included large parts of Pisidia. The names of some of its bishops are given in documents concerning church councils held from 381 to 879. No longer a residential bishopric, Casae in Pamphylia is today listed by the Catholic Church as a titular see.
The state of desolation into which the ancient city, whatever it was called, had fallen by the first decades of the 13th century is suggested by the name "Viranà Âehir" that the Seljuk Turks had given to the town, meaning "the desolate city". The Seljuk Sultans of Rum based in Konya nevertheless built their summer residence nearby, in an agglomeration situated on the southwestern lake shore at a distance of from Beyà Âehir city, and which came to be known as Kubadabad Palace. While the most precious finds of Kubadabad site date from the reign of Alaeddin Keykubad (1220âÂÂ1237), it was a seasonal settlement area chosen by and for the sultans already in the late 12th century.
After the fall of the Seljuks, Viranà Âehir was renamed for a time as Süleymanà Âehir in honor of one of the beys of the region's ruling dynasty, the Eshrefids, who made the town into his capital. Since the beys of Eshrefids resided here, the present name of Beyà Âehir was gradually adopted for the town. The Great Mosque of Beyà Âehir built by the dynasty between 1296 and 1299, also called Eà ÂrefoÃÂlu Mosque, is considered one of the masterpieces of the intermediate period of Anatolian beyliks between the Seljuk and Ottoman architecture styles.
There are 67 neighbourhoods in Beyà Âehir District:
Beyà Âehir has a dry-summer humid continental climate (Köppen: Dsa), bordering on a mediterranean climate (Csa), with very warm, dry summers and cold, snowy winters.