Storsteinnes is the administrative center of the municipality of Balsfjord in Troms county, Norway. Its population (2009) of 937[1] makes it the largest urban area in the municipality.
Storsteinnes is located at the southern end of Sørkjosen, which is a branch of the Balsfjord. European route E6 passes 4 km (2.5 mi) south of the village center. The Sagelv river runs through the village and Josefvatnet lake is located 2.5 km (1.6 mi) to the northwest of the village. The village of Nordkjosbotn is about 14 km (8.7 mi) to the east of Storsteinnes.
Most of the economy of Storsteinnes involves municipal services, but agriculture is also quite important locally. Tine runs a dairy in Storsteinnes, which is one of Norway's largest producers of Brunost. They also produce their own brand of goat milk cheese called Balsfjordost.