Storfjord is a municipality in Troms county, Norway. The administrative centre of the municipality is the village of Hatteng.The municipality of Storfjord was established in 1929 when it was separated from the municipality of Lyngen. The initial population was 1,499. On 1 January 1964, the Elvebakken farm of Balsfjord was transferred to Storfjord. Then on 1 January 1992, one uninhabited farm in the Nordnes area of Lyngen was transferred to Storfjord.
The municipality is named after the Storfjorden. The first element is stor which means "great" or "big".The coat-of-arms is from modern times. They were granted on 9 February 1990. The arms show three poppies of the very rare species papaver laestadianum. The meeting of the three poppies also represents the meeting point (Treriksrøysa) of the three countries Norway, Sweden, and Finland, that lies in the municipality.