The Old Norse form of the name must also have been Senja or perhaps Sændja. The meaning of the name is unknown, but it might be related to the verb sundra which means to "tear" or "split apart", possibly because the west coast of the island is torn and split by numerous small fjords. It might also be derived from a Proto-Norse form of the wordSandijōn meaning " of sand" or "sandy island".
Geography
The island of Senja is located along the Troms county coastline with Finnsnes as the closest town. Senja is connected to the mainland by the Gisund Bridge. The municipalities located on Senja are Lenvik, Berg, Torsken, and Tranøy. The northern coasts of Senja faces the open sea, the western coast faces the islands of Andøya and Krøttøya, the southern coast faces the islands of Andørja and Dyrøya. On the western coast, steep and rugged mountains rise straight from the sea, with some fishing villages tucked into the small lowland areas between the mountains and the sea. The eastern and southern parts of the island are milder, with rounder mountains, forests, rivers and agriculture land. Senja is often referred to as "Norway in miniature", as the island's diverse scenery reflects almost the entire span of Norwegian nature. Senja is known domestically for its scenery, and is marketed as a tourist attraction.
Climate
Climate data from the village of Gibostad on the eastern shore of the island; facing the mainland during the base period of 1961-1990. The western side of the island, facing the Norwegian Sea, will have slightly milder but more windy winters.
Economy
Naturally, the fishing industry is dominant on Senja, notably the Nergård Group at Senjahopen and Brødrene Karlsen at Husøy. At Skaland there is some graphitemining. Another important industry that can be mentioned is ArtNord and Tromspotet at Silsand, which specializes in potato and potato products, and the stair factory in Sollia. Sollia also has the world's northernmost insulation glass factory, Nicopan AS, which has customers throughout Norway, plus some exports abroad.
Transportation
The residents of Senja have the Gisund Bridge as a ferry-free road connection to the mainland across Gisundet to the town of Finnsnes. The town serves as a trading center for the entire Mid-Troms region, including the island of Senja. The island is also connected with the other towns in the county. At Lysnes on northern Senja you have a fast boat connection with the city of Tromsø, a trip that takes about 50 minutes. From the villages of Flakstadvåg and Skrolsvik on the west and south side of the island, there are also ferries to the town of Harstad to the south. During the summer there is a ferry between northern Senja and the island of Kvaløya, between southern Senja and Harstad, and between Gryllefjord and Andenes. There are four main roads on Senja. The main road is Norwegian County Road 86 which crosses the Gisund Bridge from Finnsnes, Sørreisa, and Bardufoss. It extends across the island to Torsken and Gryllefjord. From Silsand, Norwegian County Road 861 goes north along Gisundet to Gibostad and northern Senja. Norwegian County Road 860 goes from Stonglandseidet to Silsand, Norwegian County Road 862 goes from Straumsbotn in Berg, via Senjahopen to Botnhamn in Lenvik.
Governance
In March 2017, the Parliament of Norway voted to merge the municipalities of Berg, Torsken, Lenvik, and Tranøy. The new municipality will be established on 1 January 2020 as Senja Municipality. It is located in the traditional district of Hålogaland. The administrative centre of the municipality will be the town of Finnsnes. The municipality will include all of the island of Senja, the smaller surrounding islands, and part of the mainland between the Gisundet strait and the Malangen fjord.
Attractions
Among the sights of the island are Ånderdalen National Park with coastal pine forests and mountains, traditional fishing communities, and the Senja Troll, the world's largest troll statue. The southernmost municipality Tranøy also has several small museums documenting local history, among these the Halibut Museum in Skrolsvik.
The island of Senja is mentioned in David Armine Howarth's World War II novel We Die Alone: A WWII Epic of Escape and Endurance. It has a namesake island in the MMORPGTibia.
The Norwegian musician Moddi comes from the island and his music is said to have been influenced by its beauty.
The Norwegian musician Biosphere lives in Senja and his album , which was recorded in Senja, refers to a number of places in Senja.