Beypazarı is a Turkish town and district of Ankara Province in the Central Anatolia region of Turkey, approximately 100 km west of the city of Ankara. According to the 2000 census, the population of the district is 46,493, of which 35,775 live in the town of Beypazarı.

Beypazarı is located 100 km northwest of Ankara, on the old Ankara-Istanbul road. As in the past, today it maintains its social, cultural and economic center in the middle of Ayaş, Güdül, Nallıhan and Kıbrıscık Districts.
When we look at the historical course of Anatolia, it is seen that the Hittite, Phrygian, Galat, Roman, Byzantine, and later Anatolian Seljuks and Ottomans were dominant in the district of Beypazarı.
Beypazarı is located on the major historical passageways connecting Istanbul to Ankara and Baghdad during the Roman period. Its first name is LAGANIA. Sage UM ‘s in Turkey “historical names” in his book Lagann’ s narrative and made ‘Rock Peak Country’ has concluded that meant. A.D. The name of Beypazarı, whose name was Lagania until the 6th century, changed after this date. A.D. The name of the city changes as “Lagania-Anastasiopolis” (city of ANASTASIOS), referring to the visit of Lagania, which was the bishopric center of Eastern Rome (Byzantine) Emperor who ruled between 491-518.
Beypazarı encountered the first Turkish raiders with the arrival of the Turks shortly after entering the Anatolia under the command of Sultan Alparslan. Beypazarı, under the direction of Seljuks, became a homeland for Turkmen tribes who migrated frequently due to their location. The most important of these is the Kayı length. This Turkish tribe, where the Seljuk Sultanate has taken place as a dorm, was first settled around Ankara under the direction of Gazi Gündüzalp. It is known that the grave of Gazi Gündüzalp, the grandfather of Osman Bey, the founder of the Ottoman State, was in the village of Hirkatepe in Beypazarı.
During the Seljuk period, Beypazarı became an important trade center on the Istanbul-Baghdad road. Beypazarı was transferred to the Sanjak of Hüdavendigar (Bursa) after Orhan Bey took Ankara and passed into Ottoman rule. Since 1868, Beypazarı continued its importance as an accident in Ankara due to the relocation of its political administration.
Beypazarı, one of the Tımarlı (Anatolian) Sipahi Centers forming the backbone of the Ottoman State’s territorial regime and military system; It was named BEĞ BAZARI based on the Sipahi Bey in the region and the intensity of commercial and economic life.