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Kotylio (Greek: Κοτύλιο) is a village and a community in the municipal unit Gortyna, southwest Arcadia, Greece. It is situated on the northeastern slope of Mount Lykaion on a height of ca. 900 m,  3 km from the border with Elis. It is 4 km west of Karytaina, 6 km southeast of Theisoa, 8 km east of Andritsaina and 15 km northwest of Megalopoli. In 2001 Kotylio had a population of 148 for the village and 206 for the community, which includes the villages Palatos (pop. 36) and Strongylo (pop. 22).
Before 1927, Kotylio was known as Dragoumanou (Δραγουμάνου, cf. dragoman). During the first battles of the Greek War of Independence in March 1821, the inhabitants of the village provided the information on the movements of Ottoman troops. This allowed Theodoros Kolokotronis to ambush them on 27 March in the straits of Agiothanasis, near Kourounios, in what is considered the first pitched battle between Greeks and Turks during the War of Independence.
On top of Mount Lykaion, every four years, the locals organize athletic and musical games in imitation of the ancient custom.
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- De Facto Population of Greece Population and Housing Census of March 18th, 2001 (PDF 39 MB). National Statistical Service of Greece. 2003.
- Δήμος Γόρτυνος: Δημοτικά Διαμερίσματα (in Greek). Municipality of Gortyna. 2003. Archived from the original on March 6, 2014. Retrieved 6 March 2014.