Eigersund is a municipality in Rogaland county, Norway. It is in the traditional district of Dalane. The administrative centre of the municipality is the town of Egersund. The town was known for its pottery factory (closed in 1979) and it is among Norway's biggest fishing ports. The villages of Helleland, Hellvik, and Hestnes are also in Eigersund.

The island of Eigerøya lies just off shore from Egersund. The island has several well-known businesses and attractions including the Eigerøy war memorial from World War II.

The 432-square-kilometre (167 sq mi) municipality is the 228th largest by area out of the 356 municipalities in Norway. Eigersund is the 80th most populous municipality in Norway with a population of 15,011. The municipality's population density is 38.7 inhabitants per square kilometre (100/sq mi) and its population has increased by 2.6% over the previous 10-year period.

The rural parish surrounding the town of Egersund was established as the municipality of Egersund landdisstrikt (Egersund rural district) on 1 January 1838 (see formannskapsdistrikt law). In 1839, the northwestern district of Augne (population: 825) was separated to form its own municipality. On 12 December 1868, a small area of Eigersund municipality (population: 41) was transferred to neighboring Sokndal. In 1947, an area of Eigersund immediately surrounding the town of Egersund (population: 515) was transferred to the town of Egersund and another area in Sokndal (population: 7) was transferred to Eigersund.

During the 1960s, there were many municipal mergers in Norway due to the work of the Schei Committee. On 1 January 1965, the town of Egersund (population: 3,787) was merged with the surrounding municipalities of Eigersund (population: 4,664), Helleland (population: 851), and the Gyadalen and Grøsfjel areas of Heskestad (population: 114). The new municipality was also called Eigersund. On 1 January 1967, the Tjørn farm (population: 10) was transferred from Eigersund to Sokndal.

The municipality (originally the parish) is named after the Eigersundet strait (Old Norse: Eikundarsund). The first element is the genitive case of the name of the island of Eikund (now Eigerøya). The name of the island comes from the word eik which means "oak" followed by the suffix -und which means "plentiful of" (i.e. "the island covered with oak trees"). The last element is sund which means "strait" or "sound".

"Egersund" vs. "Eigersund"

Historically, the name of the municipality was spelled Egersund. On 3 November 1917, a royal resolution changed the spelling of the name of the municipality to Eigersund. The town of Egersund within the municipality, however, did not change and it kept the old spelling. The form of the name spelled without the diphthong [ei] (Egersund) is the Danish language form of the name and at that time the municipal name was changed to use the Norwegian language form. The town kept the old spelling for historic purposes.

The coat of arms was granted on 20 October 1972. The official blazon is "Vert, an oak leaf Or" (Norwegian: På grønn bunn et opprett gull eikeblad). This means the arms have a green field (background) and the charge is an oak leaf. The oak leaf 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 are canting arms since the name is derived from Eikundarsund and the eik part means "oak". Oaks are also very common in the municipality. The arms were designed by Hallvard Trætteberg. The municipal flag has the same design as the coat of arms.

The Church of Norway has three parishes (sokn) within the municipality of Eigersund. It is part of the Dalane prosti (deanery) in the Diocese of Stavanger.

Churches in Eigersund

Parish (sokn)	Church name	Location of the church	Year built
Egersund	Egersund Church	Egersund	1607
	Bakkebø Church	Egersund	1960
Eigerøy	Eigerøy Church	Eigerøya	1998
Helleland	Helleland Church	Helleland	1832

The place is mentioned in Snorri Sturluson's writings. Later, Christian IV set up a battery there.

Eigersund Municipality is responsible for primary education (through 10th grade), outpatient health services, senior citizen services, welfare and other social services, zoning, economic development, and municipal roads and utilities. The municipality is governed by a municipal council of directly elected representatives. The mayor is indirectly elected by a vote of the municipal council. The municipality is under the jurisdiction of the Sør-Rogaland District Court and the Gulating Court of Appeal.

The municipal council (Kommunestyre) of Eigersund is made up of 31 representatives that are elected to four year terms. The tables below show the current and historical composition of the council by political party.

The mayors (Norwegian: ordfører) of Eigersund:

Eigersund extends from the North Sea coast to the border of Agder county. It borders the municipalities of Hå and Bjerkreim to the north and Sokndal to the south. The municipality is centered on the town of Egersund, and includes the island of Eigerøya. The landscape includes many rivers and lakes, as well as woods and several barren rocky and heather-clad moors. The lakes Grøsfjellvatnet, Eiavatnet, Nodlandsvatnet, and Teksevatnet lie in the municipality.

Eigerøya is an island off the coast of Egersund. The island is connected to the mainland over Eigerøy bridge, which was completed in 1951. The island's coastline is characterized by a number of small bays, as well as Lundarviga. Eigerøya is divided almost in two of the large bay of Lundarviga. The island is surrounded by a number of small islets. Eigerøy Lighthouse and Vibberodden Lighthouse are both located along the shores of Eigerøya.

European route E39 runs through the municipality, passing the village of Helleland. The Sørlandet Line runs through the municipality, stopping at Egersund Station and Hellvik Station.

• Michael Birkeland (1830 in Eigersund – 1896), a historian, civil servant, and politician
• Peter C. Assersen (1839 in Egersund – 1906), a civil engineer and Rear Admiral in US Navy
• Bernt B. Lomeland (1836 in Helleland – 1900), a school teacher and lay minister
• Elisabeth Fedde (1850–1921), a Lutheran Deaconess who lived in Egersund from 1895
• Anna Bugge (1862 in Egersund – 1928), a Norwegian & Swedish feminist, lawyer, diplomat, and politician
• Jacob Thorkelson (1876 in Egersund – 1945), a US Congressman from Montana
• Jack Nielsen (1896 in Egersund – 1981), a Norwegian tennis player and six-time national champion
• Paulus Svendsen (1904 in Egersund – 1989), a literary historian, wrote biographies of Western philosophers
• Thorbjørn Feyling (1907 in Egersund – 1985), a ceramist with Stavangerflint AS
• Johnny Stenberg (born 1925 in Eigersund - 1990), a politician who was mayor of Meråker from 1966-1973
• John Olav Larssen (1927 in Hellvik – 2009), an evangelical preacher and missionary
• Gunnar Kvassheim (born 1953 in Eigersund), a Norwegian journalist and politician
• Bengt Sæternes (born 1975 in Egersund), a former footballer with 478 club caps and 7 for Norway

• Municipal fact sheet from Statistics Norway (in Norwegian)