Ostróda [ɔsˈtruda] (German:  Osterode in Ostpreußen ) is a town in Ostróda County in the Warmian-Masurian Voivodeship in Poland, with 33,191 inhabitants as of December 31, 2009. It lies in the Masurian Lake District and is a growing tourist site owing to its relaxing natural surroundings.