Marcinki [marˈt͡ɕinki] is a village in the administrative district of Gmina Kobyla Góra, within Ostrzeszów County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 4 kilometres (2 mi) south of Kobyla Góra, 13 km (8 mi) south-west of Ostrzeszów, and 133 km (83 mi) south-east of the regional capital Poznań.