# Os, Hordaland

Os is a former municipality in the old Hordaland county, Norway. It was located in the Midhordland region, just south of Norway's second-largest city, Bergen. Due to its proximity to Bergen, Os experienced strong population growth. The administrative centre (and commercial centre) of Os was the village of Osøyro. It is the largest settlement in the municipality, with over 60% of the municipal residents living here. Other large villages in Os included Hagavik, Halhjem, Søfteland, Søre Øyane, and Søvik. On 1 January 2020, the municipality became part of Bjørnafjorden Municipality in Vestland county.
Prior to its dissolution in 2020, the 140-square-kilometre (54 sq mi) municipality is the 360th largest by area out of the 422 municipalities in Norway. Os is the 57th most populous municipality in Norway with a population of 20,152. The municipality's population density is 151 inhabitants per square kilometre (390/sq mi) and its population has increased by 29.2% over the last decade.

## History

The parish of Os was established as a formannskapsdistrikt, the predecessor of today's municipalities, on 1 January 1838. It originally encompassed all of the land surrounding the Fusafjorden. In 1856, the eastern district of Os (across the fjord) was separated to form the new, separate municipality of Fusa. This left Os with 3,750 residents.
In 1900, "Askviknes Barnehjem" (near Hagavik) opened; it housed children of romani/tater; in the beginning the children's stay was something their families applied for; later children were introduced to the facility without consent of their families.
On 1 January 1907, the northern part of the municipality was separated to form the new municipality of Samnanger. This left Os with 3,188 residents. During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1964, the Bogstrand area of Fusa (population: 28) was transferred to Os. This was the only part of Fusa on the west side of the fjord.
During World War II, the Ulven concentration camp was used by the occupying Nazi German Army. It was located just northwest of Osøyro.
On 1 January 2020, the neighboring municipalities of Os and Fusa were merged to form the new Bjørnafjorden Municipality.

### Name

The municipality (originally the parish) is named after the old Os farm (Old Norse: Óss) since the first Os Church was built there. The name is identical to the word óss which means "mouth of a river", referring here to the Oselva river.

### Coat of arms

The coat of arms was adopted in 1949 and it was in use until 1 January 2020 when the municipality was dissolved. The blazon is "Gules, one large and six small roses over a rowboat Or". This means the arms have a red field (background) and the charge is a rowboat underneath a flower and six small stars surrounding the flower. The charge has a tincture of Or which means it is commonly colored yellow, but if it is made out of metal, then gold is used. The arms were adopted in 1949 after a local competition. Boat building has been an important industry in Os for a long time. The rowboat design was chosen to symbolize the Oselvar boat which is commonly built and used in this area. The Oselvar is widely known for its good rowing and sailing properties. The roses in the coat of arms stand for the art of rosemåling which has long been used for decorations in the area. The small roses in the design corresponded to the number of school districts in Os when the coat of arms was new. The municipality often includes a mural crown over the shield. The arms were designed by Trygve Eriksen.

## Churches

The Church of Norway had one parish (sokn) within the municipality of Os. It is part of the Fana prosti (deanery) in the Diocese of Bjørgvin.
Churches in Os :
| Parish (sokn) | Church name | Location of the church | Year built |
| Os | Os Church | Osøyro | 1870 |
| Os | Nore Neset Church | Hagavik | 2000 |

## Government

During its existence, this municipality was governed by a municipal council of directly elected representatives. The mayor was indirectly elected by a vote of the municipal council.

### Municipal council

The municipal council (Kommunestyre) of Os was made up of 35 representatives that were elected to four year terms. The party breakdown of the final municipal council was as follows:
Os kommunestyre 2016–2019 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 7 |
| | Progress Party (Framstegspartiet) | 14 |
| | Green Party (Miljøpartiet Dei Grøne) | 2 |
| | Conservative Party (Høgre) | 4 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 2 |
| | Centre Party (Senterpartiet) | 2 |
| | Liberal Party (Venstre) | 2 |
| | Cross-party local list for Os (Tverrpolitisk Bygdeliste for Os) | 2 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 2012–2015 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 7 |
| | Progress Party (Framstegspartiet) | 13 |
| | Conservative Party (Høgre) | 6 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 2 |
| | Centre Party (Senterpartiet) | 1 |
| | Liberal Party (Venstre) | 2 |
| | Cross-party local list for Os (Tverrpolitisk Bygdeliste for Os) | 4 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 2008–2011 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 5 |
| | Progress Party (Framstegspartiet) | 17 |
| | Conservative Party (Høgre) | 4 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 2 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 1 |
| | Liberal Party (Venstre) | 1 |
| | Cross-party common list - local list for Os (Tverrpolitisk samlingsliste – bygdaliste for Os) | 4 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 2004–2007 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 5 |
| | Progress Party (Framstegspartiet) | 16 |
| | Conservative Party (Høgre) | 3 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 3 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 3 |
| | Liberal Party (Venstre) | 1 |
| | Cross-Party Common List (Tverrpolitisk samlingsliste) | 3 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 2000–2003 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 6 |
| | Progress Party (Framstegspartiet) | 14 |
| | Conservative Party (Høgre) | 4 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 4 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 2 |
| | Cross-Party Common List (Tverrpolitisk samlingsliste) | 4 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 1996–1999 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 7 |
| | Progress Party (Framstegspartiet) | 7 |
| | Conservative Party (Høgre) | 4 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 3 |
| | Centre Party (Senterpartiet) | 2 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 1 |
| | Liberal Party (Venstre) | 1 |
| | Common list for Os (Samlingslista for Os) | 5 |
| | Cross-party local list for Os (Tverrpolitisk bygdeliste for Os) | 5 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 1992–1995 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 6 |
| | Progress Party (Framstegspartiet) | 4 |
| | Conservative Party (Høgre) | 5 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 3 |
| | Centre Party (Senterpartiet) | 2 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 2 |
| | Common list for Os (Samlingslista for Os) | 6 |
| | Cross-party local list for Os (Tverrpolitisk bygdeliste for Os) | 7 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 1988–1991 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 9 |
| | Progress Party (Framstegspartiet) | 5 |
| | Conservative Party (Høgre) | 6 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 2 |
| | Centre Party (Senterpartiet) | 1 |
| | Liberal Party (Venstre) | 2 |
| | Common list for Os (Samlingslista for Os) | 6 |
| | Cross-party local list for Os (Tverrpolitisk bygdeliste for Os) | 4 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 1984–1987 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 8 |
| | Progress Party (Framstegspartiet) | 3 |
| | Conservative Party (Høgre) | 8 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 3 |
| | Centre Party (Senterpartiet) | 1 |
| | Liberal Party (Venstre) | 2 |
| | Common list for Os (Samlingslista for Os) | 10 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 1980–1983 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 8 |
| | Progress Party (Framstegspartiet) | 1 |
| | Conservative Party (Høgre) | 12 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 4 |
| | Centre Party (Senterpartiet) | 2 |
| | Liberal Party (Venstre) | 2 |
| | Common list for Os (Samlingslista for Os) | 6 |
| Total number of members: | Total number of members: | 35 |
Os kommunestyre 1976–1979 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 8 |
| | Conservative Party (Høgre) | 7 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 3 |
| | New People's Party (Nye Folkepartiet) | 2 |
| | Centre Party (Senterpartiet) | 2 |
| | Liberal Party (Venstre) | 1 |
| | Common list for Os (Samlingslista for Os) | 6 |
| Total number of members: | Total number of members: | 29 |
Os kommunestyre 1972–1975 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 10 |
| | Conservative Party (Høgre) | 3 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 3 |
| | Centre Party (Senterpartiet) | 3 |
| | Liberal Party (Venstre) | 4 |
| | Local List(s) (Lokale lister) | 6 |
| Total number of members: | Total number of members: | 29 |
Os kommunestyre 1968–1971 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 10 |
| | Conservative Party (Høgre) | 2 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 3 |
| | Centre Party (Senterpartiet) | 3 |
| | Liberal Party (Venstre) | 3 |
| | Joint List(s) of Non-Socialist Parties (Borgarlege Felleslister) | 2 |
| | Local List(s) (Lokale lister) | 6 |
| Total number of members: | Total number of members: | 29 |
Os kommunestyre 1964–1967 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 10 |
| | Conservative Party (Høgre) | 3 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 4 |
| | Centre Party (Senterpartiet) | 2 |
| | Liberal Party (Venstre) | 4 |
| | Local List(s) (Lokale lister) | 6 |
| Total number of members: | Total number of members: | 29 |
Os heradsstyre 1960–1963 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 11 |
| | Conservative Party (Høgre) | 3 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 5 |
| | Centre Party (Senterpartiet) | 3 |
| | Liberal Party (Venstre) | 6 |
| | Local List(s) (Lokale lister) | 1 |
| Total number of members: | Total number of members: | 29 |
Os heradsstyre 1956–1959 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 12 |
| | Conservative Party (Høgre) | 2 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 4 |
| | Farmers' Party (Bondepartiet) | 4 |
| | Liberal Party (Venstre) | 5 |
| | Local List(s) (Lokale lister) | 2 |
| Total number of members: | Total number of members: | 29 |
Os heradsstyre 1952–1955 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 9 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 4 |
| | Farmers' Party (Bondepartiet) | 3 |
| | Liberal Party (Venstre) | 5 |
| | Local List(s) (Lokale lister) | 3 |
| Total number of members: | Total number of members: | 24 |
Os heradsstyre 1948–1951 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 9 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 4 |
| | Farmers' Party (Bondepartiet) | 3 |
| | Liberal Party (Venstre) | 5 |
| | Local List(s) (Lokale lister) | 3 |
| Total number of members: | Total number of members: | 24 |
Os heradsstyre 1945–1947 :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 12 |
| | Christian Democratic Party (Kristeleg Folkeparti) | 4 |
| | Local List(s) (Lokale lister) | 8 |
| Total number of members: | Total number of members: | 24 |
Os heradsstyre 1938–1941* :
| Party name (in Nynorsk) | Party name (in Nynorsk) | Number of representatives |
| | Labour Party (Arbeidarpartiet) | 5 |
| | Farmers' Party (Bondepartiet) | 3 |
| | Joint List(s) of Non-Socialist Parties (Borgarlege Felleslister) | 4 |
| | Local List(s) (Lokale lister) | 4 |
| Total number of members: | Total number of members: | 16 |
| Note: Due to the German occupation of Norway during World War II, no elections were held for new municipal councils until after the war ended in 1945. |||

### Mayors

The mayors (Nynorsk: ordførar) of Os:
* 1838–1841: Hans Astrup Krüger
* 1841–1843: Torstein Hoel Jersin
* 1844–1847: Ola Synnestvedt
* 1848–1851: Jon Kvaale
* 1852–1855: Hans Christian Krüger
* 1855–1857: Georg Døderlein Greve
* 1858–1861: Johan Leganger
* 1862–1863: Ole Hansen
* 1864–1867: Georg Døderlein Greve
* 1868–1871: Lars Nordvik
* 1872–1875: Baard Tvedt
* 1876–1879: Lars Nordvik
* 1880–1881: Baard Tvedt
* 1882–1883: Mathias Erichsen (MV)
* 1884–1885: Nils S. Røsseland (V)
* 1886–1910: Mathias Erichsen (H)
* 1911–1913: Hans Eide (V)
* 1914–1916: Hans M. Skinstad (H)
* 1917–1940: Nils Tveit (V)
* 1941–1942: Ole Moberg Hauge (Bp)
* 1942–1945: Sigurd Bugge (NS)
* 1945–1945: Nils Tveit (V)
* 1946–1949: Olav Moberg (Ap)
* 1950–1959: Anders Hauge (Bp)
* 1960–1967: Leif Strønen (V)
* 1968–1971: Alfred Monsen (Ap)
* 1972–1975: Erling H. Lunde (KrF)
* 1976–1987: Paul Martin Sælen (LL)
* 1988–1993: Ole Haakon Lunde (H)
* 1994–1995: Annlaug Tysseland (LL)
* 1995–1999: Geirmund Dyrdal (KrF)
* 1999–2019: Terje Søviknes (FrP)
* 2016–2018: Marie Lunde Bruarøy (H)

## Geography

The municipality of Os was located on the southwestern part of the Bergen Peninsula, south of the municipality of Bergen and southeast of the municipality of Samnanger. The Fusafjorden was to the east, the Bjørnafjorden to the south, and the Lysefjorden lies to the west. The municipality of Fusa was located to the east (across the Fusafjorden), the municipality of Tysnes was to the south (across the Bjørnafjorden), and the municipality of Austevoll was to the west (across the Lysefjorden).
The southwestern part of Os included many small islands including Skorpo, Strøno, and Innerøya. The village area of Søre Øyane was located on several small islands off the mainland shore.
The municipality was somewhat mountainous, especially in the northeastern part of the municipality. The mountain Sveningen was a tripoint boundary, marking the boundary point where the municipalities of Bergen, Os, and Samnanger meet. It was located in extreme northeastern Os. The mountains of Mosnuken and Lyshornet are both located in Os.

## Culture

The Oseana Art and Cultural Centre is located in Os. It hosts art and music events year-round. The building is fairly new and in 2011, it won the "Building of the Year Award" (Årets Bygg) for Norway.

## Industry

Os has had a tradition of small boat building since the early 1800s. The Oselvar is the traditional boat of Os. This small wooden boat was named after its major important building site during the 18th century, at the mouth of the Oselva River. These boats have traditionally been used for everyday work and for traveling to church. These boats were designed as either sailboats or rowboats. They still build these boats the traditional way in Os, and tourists are able to visit and watch them work.
The Oselvar is now the official boat of Norway. With its traditions, the boat has become a symbol of the nation. The boat is shown on the coat of arms of Os.
Hagavik, a village in Os municipality, also has a modern boat building company, Askeladden Boats AS. Askeladden is Norway's largest manufacturer of leisure boats.

## Transportation

The European route E39 highway passed through Os from the city of Bergen (to the north) to the ferry quay at Halhjem, on the shore of the Bjørnafjorden. The quay has two different regularly-scheduled ferry routes that stop here to cross the Bjørnafjorden. There is a ferry from Halhjem to Våge on the island of Tysnesøya in Tysnes municipality, to the southeast. There is also a ferry (that is part of the E39 highway) from Halhjem to Sandvika, just north of the village of Fitjar in Fitjar municipality, to the south.
The Norwegian government is planning to build a bridge or tunnel crossing to provide road access across the Bjørnafjorden as part of the Hordfast project. When completed, the northern terminus will be in Os.

## Demographics

| Year | Pop. | ±% p.a. |
| 1855 | 4,646 | — |
| 1865 | 3,750 | −2.12% |
| 1875 | 3,933 | +0.48% |
| 1891 | 4,536 | +0.90% |
| 1900 | 5,242 | +1.62% |
| 1910 | 3,267 | −4.62% |
| Year | Pop. | ±% p.a. |
| 1920 | 3,713 | +1.29% |
| 1930 | 3,831 | +0.31% |
| 1946 | 4,993 | +1.67% |
| 1951 | 5,580 | +2.25% |
| 1960 | 6,637 | +1.95% |
| 1970 | 8,006 | +1.89% |
| Year | Pop. | ±% p.a. |
| 1980 | 10,598 | +2.84% |
| 1990 | 12,608 | +1.75% |
| 2000 | 13,896 | +0.98% |
| 2010 | 16,684 | +1.85% |
| 2019 | 20,804 | +2.48% |
Note: The municipal borders were changed in 1856, 1907, and 1964, causing a significant change in the population. Source: Statistics Norway and Norwegian Historical Data Centre :
As of 1 January 2014, Os has a population of 18,678 which gives it a population density is 139.9 inhabitants per square kilometre (362/sq mi), compared to a county average of about 30 inhabitants per square kilometre (78/sq mi) and a national average of about 15 inhabitants per square kilometre (39/sq mi). About 80% of the population of Os lived in urban settlements. About 1.9% of the population were registered as unemployed; the county and national average is 2.6%. About 26% of the workforce were employed in public administration. About 2% were employed in the primary sector of economic activity, 28.2% in the secondary sector, and 69.3% in the tertiary sector. In the period from 29 October to 4 November 2001, 45.7% of the workforce of Os commuted out of the municipality, mainly to the neighboring city of Bergen. In the same time period, Os received a daily average of 753 commuters from other municipalities, 15.8% of those employed in Os. In 2006, Os had a daily out-commuting of 3,001 people.

## Notable people

* Ole Bull, the famous violinist, built his summer house on the island of Lysøen in Os. That special building was inspired by his travels, especially his travels to the Middle East. The island of Lysøen was originally owned by Lyse Abbey, the ruins of which still stand and are frequently visited.
* Aurora Aksnes, a singer-songwriter who was born in Stavanger, grew up in Os.