Niałek Wielki (Polish pronunciation: [ˈɲawɛk ˈfjɛlkʲi]) is a village in the administrative district of Gmina Wolsztyn, within Wolsztyn County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 2 kilometres (1 mi) west of Wolsztyn and 64 km (40 mi) south-west of the regional capital Poznań.