Cienia Trzecia [ˈt͡ɕɛɲa ˈtʂɛt͡ɕa] is a village in the administrative district of Gmina Opatówek, within Kalisz County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 3 kilometres (2 mi) south-west of Opatówek, 10 km (6 mi) south-east of Kalisz, and 117 km (73 mi) south-east of the regional capital Poznań.