The Trondheim Fjord or Trondheimsfjorden, an inlet of the Norwegian Sea, is Norway's third-longest fjord at 130 kilometres (81 mi) long. It is located in the west-central part of the country in Trøndelag county, and it stretches from the municipality of Ørland in the west to the municipality of Steinkjer in the north, passing the city of Trondheim on its way. Its maximum depth is 617 metres (2,024 ft), between Orkland and Indre Fosen.

Steinkjer is the administrative centre of the municipality of Steinkjer in Trøndelag county, Norway. The town is located at the northeastern end of the inner-most part of the Trondheimsfjorden, at the mouth of the river Steinkjerelva. In the eastern part of the town, the river of Figgja also flows into the fjord. The town is split in two by Steinkjerelva, creating the two traditional neighborhoods of Nordsia and Sørsia. Both the European route E6 highway and the Nordlandsbanen railway line run through the town, the latter serving the city at Steinkjer Station. Steinkjer Church and Egge Church are both located in the town.