Megaro (, before 1927: áñôÿÃÂïýùÃÂÃÂñ â Radosinista) is a village and a community of the Grevena municipality. Before the 2011 local government reform it was a part of the municipality of Agios Kosmas, of which it was a municipal district. The 2021 census recorded 301 residents in the village. The community of Megaro covers an area of 24.757 km<sup>2</sup>. An autobiography was published in 2023 by Christos J. Tsimikas (born August 3, 1935) describing the life and times around Megaro, with historical text describing events starting from 1864.