Długomiłowice [dwuɡɔmiwɔˈvit͡sɛ] (German: Langlieben) is a village in the administrative district of Gmina Reńska Wieś, within Kędzierzyn-Koźle County, Opole Voivodeship, in southwestern Poland. It lies approximately 5 kilometres (3 mi) south-east of Reńska Wieś, 9 km (6 mi) south-west of Kędzierzyn-Koźle, and 46 km (29 mi) south of the regional capital Opole.