Jarnołtówek [jarnɔu̯ˈtuvɛk] (German: Arnoldsdorf) is a village in the administrative district of Gmina Głuchołazy, within Nysa County, Opole Voivodeship, south-western Poland. It is situated in the historical region of Prudnik Land. It lies approximately 6 km (4 mi) south-east of Głuchołazy, 12 km (7 mi) south-west of Prudnik, and 27 km (17 mi) south of Nysa.