Otwock Wielki is a village in the administrative district of Gmina Karczew, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) south of Karczew, 8 km (5 mi) south of Otwock, and 26 km (16 mi) south-east of Warsaw.
The village has a population of 630.