Proślice [prɔˈɕlit͡sɛ] is a village in the administrative district of Gmina Byczyna, within Kluczbork County, Opole Voivodeship, in south-western Poland. It lies approximately 8 kilometres (5 mi) west of Byczyna, 15 km (9 mi) north-west of Kluczbork, and 50 km (31 mi) north of the regional capital Opole.