1864 in Norway

• Monarch: Charles IV.{{cite encyclopedia|title=Karl 4. |first1=Lars Roar |last1=Langslet |author1-link=Lars Roar Langslet |first2=Magnus A. |last2=Mardal |encyclopedia=Store norske leksikon |editor-last=Bolstad | editor-first=Erik |publisher=Norsk nettleksikon |location=Oslo |url=https://snl.no/Karl_4._-_av_Norge_og_Sverige |language=no |access-date=3 January 2024}}

• 19 April – The last public execution in Christiania took place at Etterstad, attended by about 5,000 spectators.

• Ja, vi elsker, composed by Rikard Nordraak, with lyrics by Bjørnstjerne Bjørnson, becomes the (de facto) Norwegian national anthem.

File:Hildur Andersen - 1909 - Gustav Borgen - Norsk Folkemuseum - NFB.49749.jpg ]]

• 7 January – Rasmus Pedersen Thu, photographer (died 1946)
• 24 February – Anders Buen, typographer, newspaper editor, trade unionist and politician (died 1933)
• 10 March – Rolfine Absalonsen, actress (died 1933){{cite book|last1=Jensson|first1=Liv|title=Biografisk skuespillerleksikon : norske, danske og svenske skuespillere på norske scener særlig på 1800-tallet|date=1981|publisher=Universitetsforl|isbn=8200056228|page=13|url=https://www.nb.no/items/URN:NBN:no-nb_digibok_2013042906062?page=13|language=no}}
• 13 March – James C. M. Hanson, Norwegian American librarian and author (died 1943)
• 15 March – Johan Halvorsen, composer, conductor and violinist (died 1935)
• 21 March – Svend Rasmussen Svendsen, Norwegian American impressionist artist (died 1945)
• 25 May – Hildur Andersen, pianist and music pedagogue (died 1956).{{cite encyclopedia|title=Hildur Andersen |first1= |last1= |encyclopedia=Store norske leksikon |editor-last=Bolstad | editor-first=Erik |publisher=Norsk nettleksikon |location=Oslo |url=https://snl.no/Hildur_Andersen |language=no |access-date=8 January 2025}}
• 7 June – Emil Biorn, Norwegian American sculptor and artist (died 1935)
• 22 June – Hans Jørgen Darre-Jenssen, engineer, politician and Minister (died 1950)
• 8 July – Marie Hauge, painter (died 1931)
• 10 October – Ola Bertelsen, jurist and politician (died 1946)
• 19 September – Ragna Wettergreen, stage and film actress (died 1958)
• 1 December – Carsten Borchgrevink, polar explorer (died 1934)
• 14 December – Anders Svor, sculptor (died 1929)

• Gulbrand Hagen, Norwegian American newspaper editor and writer (died 1919)
• Fredrik Ludvig Konow, politician and Minister (died 1954)
• Johan Wilhelm Normann Munthe, soldier and art collector (died 1935)
• Christian Lange Rolfsen, politician and Minister (died 1934)
• Nils Collett Vogt, poet (died 1937)
• Johannes B. Wist (died 1923) Norwegian American journalist and author.

• 12 January – Lars Rasch, jurist and politician (born 1797)
• 20 March - Broder Knudtzon, merchant and politician (born 1788).{{cite encyclopedia|title=Broder Lysholm Knudtzon |first1= |last1= |first2= |last2= |encyclopedia=Store norske leksikon |editor-last=Bolstad | editor-first=Erik |publisher=Norsk nettleksikon |location=Oslo |url=https://snl.no/Broder_Lysholm_Knudtzon |language=no |access-date=23 November 2023}}
• 7 June – Rolf Olsen, politician (born 1818)
• 24 November – Ulrik Frederik Cappelen, jurist and politician (born 1797)

• Ola Antonson Holsen, politician (born 1808)

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