Mecklenburg Castle was a medieval castle and a residential capital of the Nakonid and Nikloting dynasties of the Obotrites. It was located just south of the modern village Dorf Mecklenburg, seven kilometres south of the Bay of Wismar in Mecklenburg-Vorpommern, Germany. The only remnants of the ruined castle are parts of an earthen wall. Some scholars have associated Mecklenburg with the medieval trading emporium Reric.