Byneset is a former municipality in Sør-Trøndelag county, Norway. The 78.5-square-kilometre (30.3 sq mi) municipality existed from 1838 until its dissolution in 1964. The municipality of Byneset encompassed the western part of what is now Trondheim municipality in Trøndelag county. Byneset was located along an arm of the Trondheimsfjord and it was separated from the city of Trondheim by the Bymarka recreation area. The local Byneset Church is one of the oldest stone churches in Norway. The largest village in Byneset was Spongdal which was the administrative centre of the municipality. Other villages included Byneset and Langørjan.

Trondheim, historically Kaupangen, Nidaros and Trondhjem, is a city and municipality in Trøndelag county, Norway. As of 2022, it had a population of 212,660. Trondheim is the third most populous municipality in Norway, and was the fourth largest urban area. Trondheim lies on the south shore of Trondheim Fjord at the mouth of the River Nidelva. Among the significant technology-oriented institutions headquartered in Trondheim are the Norwegian University of Science and Technology (NTNU), the Foundation for Scientific and Industrial Research (SINTEF), the Geological Survey of Norway (NGU), and St. Olavs University Hospital.