Olszewo-Grzymki [ɔlˈʂɛvɔ ˈɡʐɨmki] is a village in the administrative district of Gmina Stupsk, within Mława County, Masovian Voivodeship, in east-central Poland.

[1] It lies approximately 6 kilometres (4 mi) east of Stupsk, 16 km (10 mi) south-east of Mława, and 95 km (59 mi) north of Warsaw.

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