Krzepocin Pierwszy [kʂɛˈpɔt͡ɕin ˈpjɛrfʂɨ] is a village in the administrative district of Gmina Łęczyca, within Łęczyca County, Łódź Voivodeship, in central Poland. It lies approximately 6 kilometres (4 mi) south-west of Łęczyca and 34 km (21 mi) north-west of the regional capital Łódź.