Viggja is a village in the municipality of Skaun in Trøndelag county, Norway. The village is located on the shores of the Orkdalsfjorden, an arm of the Trondheimsfjorden, about 8 kilometres (5.0 mi) northeast of the town of Orkanger and about 5.5 kilometres (3.4 mi) northwest of the village of Børsa. The European route E39 highway passes about 2 kilometres (1.2 mi) south of the village.

The 0.22-square-kilometre (54-acre) village has a population (2018) of 357 and a population density of 1,623 inhabitants per square kilometre (4,200/sq mi).