Gáivuotna (Northern Sami) or Kåfjord (Norwegian), is a municipality in Troms county, Norway. The administrative centre of the municipality is the village of Olderdalen.The municipality of Kåfjord was established in 1929 when it was separated from the municipality of Lyngen. The initial population of Kåfjord was 2,482. Then on 1 January 1992, the Nordnes area of Lyngen (population: 38) which was on the mainland was transferred to Kåfjord.
Kåfjord is a Norwegianized form of the Sámi name Gáivuotna. The meaning of the first element is unknown and the last element is vuotna which means "fjord".The name of the municipality was Kåfjord until 2 May 1994, when it was changed to Gáivuotna-Kåfjord It was the fifth municipality in Norway to get a Sami name. In 2005, the name was again changed such that either the Sami Gáivuotna or the Norwegian Kåfjord name can be used.