Spillum is a village in the municipality of Namsos in Nord-Trøndelag county, Norway. The village is located along the Namsen river about 5 kilometres (3.1 mi) directly south of the town of Namsos and about 4 kilometres (2.5 mi) north of the village of Klinga. The Norwegian Sawmill museum is located in Spillum. The 1.74-square-kilometre (430-acre) village has a population (2013) of 1,322, giving the village a population density of 760 inhabitants per square kilometre (2,000/sq mi).