Nykirke is a village in Horten Municipality in Vestfold county, Norway. The village is located along the European route E18 highway about 7 kilometres to the west of the town of Horten, about 8 kilometres to the south of the town of Holmestrand, and about 5 kilometres to the north of the village of Skoppum. The 0.55-square-kilometre village has a population of 733 and a population density of 1,330 inhabitants per square kilometre. The medieval Nykirke Church is located in the village.