Osterburg may refer to:Osterburg (Altmark), a town in Saxony-Anhalt, Germany Osterburg station, a railway station in the town Osterburg (Verwaltungsgemeinschaft), a former collective municipality that included the town Osterburg (Groothusen), a castle in Lower Saxony, Germany Osterburg (Weida), a castle in Weida, Thuringia, Germany Osterburg, Pennsylvania, US, a village