Taxiarchis (, before 1919: ÃÂÿÃÂÃÂúàâ Kotsko, between 1919 and 1927: ÃÂÿÃÂúàâ Kosko) is a village and a community of the Grevena municipality. Before the 2011 local government reform it was a part of the municipality of Irakleotes, of which it was a municipal district. The 2021 census recorded 200 residents in the village. The community of Taxiarchis covers an area of 22.83 km<sup>2</sup>.