Sandruper See is a lake in Münsterland, North Rhine-Westphalia, Germany. At an elevation of 43 m, its surface area is 11 ha. It is immediately south of the small town of Sprakel, itself a northern suburb of the city of Münster.Since 1966, the lake has been managed by the local angling club, VFG Frühauf Münster, who own half the lake.