Grzmięca [ˈɡʐmjɛnt͡sa] is a village in the administrative district of Gmina Zbiczno, within Brodnica County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 10 kilometres (6 mi) north of Brodnica and 62 km (39 mi) north-east of Toruń.