Szymanowice Duże (Polish pronunciation: [ʂɨmanɔˈvit͡sɛ ˈduʐɛ]) is a village in Otwock County, Gmina Sobienie-Jeziory.

The population is near 200.

From 1975 to 1998 this village was in Siedlce Voivodeship.

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