| Official Name: | Tyssedal |
| Settlement Type: | Village |
| Pushpin Map: | Vestland#Norway |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location of the village |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Western Norway |
| Subdivision Name2: | Vestland |
| Subdivision Type3: | District |
| Subdivision Name3: | Hardanger |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Ullensvang |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Area Total Km2: | 0.61 |
| Population As Of: | 2019 |
| Population Total: | 601 |
| Population Density Km2: | 985 |
| Postal Code Type: | Post Code |
| Postal Code: | 5770 Tyssedal |
| Elevation M: | 37 |
| Elevation Footnotes: | [1] |
| Coordinates: | 60.1161°N 6.5589°W |
Tyssedal is a village in Ullensvang municipality in Vestland county, Norway. The village is located on the shore of the Sørfjorden about north of the town of Odda. Tyssedal is located in an environment in a valley between the fjord to the west and the mountains leading up to the Hardangervidda mountain plateau to the east.[2]
Tyssedal Church is located in this village. The lake Ringedalsvatnet and the Trolltunga cliff are located just to the east, higher up in the valley.
The 0.61km2 village has a population (2019) of 601 and a population density of .[3]
Tyssedal is a typical monotown, depending upon the energy received from the hydropower station. The first hydropower station in Tyssedal, Tysso I, is today part of the Norwegian Museum of Hydropower and Industry.[4]
The ilmenite smelter "Tinfos Titan and Iron" (TTI) (once owned by Tinfos, to Wikipedians known as the Eramet Titanium & Iron plant) is located here and is the largest employer in the village. The smelter was converted from making aluminium in the late 1980s. Tyssedal grew up around this smelter in the early-twentieth century.
Tyssedal drew migrants from different parts of Norway, who spoke different Norwegian dialects.From these there developed a compromise dialect, what linguists call a koiné language. Tyssedal and the nearby town of Odda - which arose in the same time and socio-economic circumstances but from a more homogeneous population - provided valuable insights to linguists studying this phenomenon.
Professor Paul Kerswill conducted an intensive study of the Norwegian spoken in the two communities, relating them to very different geographical origins: The workers in Odda came predominantly (86%) from western Norway. In Tyssedal only about one third came from western Norway; one third came from eastern Norway; and the rest from other parts of the country. The dialects that evolved in these two communities were radically different from each other, though spoken at a short geographical distance from each other.[5]