Skoppum is a village in Horten Municipality in Vestfold county, Norway. The village is located about 5 kilometres (3.1 mi) to the southwest of the town of Horten, about 3 kilometres (1.9 mi) to the west of the village of Borre, about 5.5 kilometres (3.4 mi) to the northwest of the town of Åsgårdstrand, about 4 kilometres (2.5 mi) south of the village of Nykirke, and about 8 kilometres (5.0 mi) to the east of the village of Revetal (in Tønsberg Municipality.

The 1.28-square-kilometre (320-acre) village has a population (2023) of 1,713 and a population density of 1,342 inhabitants per square kilometre (3,480/sq mi).

Skoppum Station is located in the village. It located along the Vestfoldsbanen railway line and was the sole remaining railway station in Horten Municipality until construction began on the new Horten station 1 km to the southwest. The station was the site where the old Hortensbanen railway line used to branch off and head into the town of Horten (the Horten line was closed in 1967). Skoppum Church is located in the village.

Skoppum houses several high-tech companies, such as Memscap, Safran and poLight.