1879 in Denmark

Undated

• The Danish Photographers Association is founded as the first organization for professional photographers in the world.^[2]
• The Thingvalla Line is founded.
• The Foreningen imod Lovbeskyttelse for Usædelighed is founded.
• Prince Valdemar visits St. Croix in the Danish West Indies.

Theatre

• 21 December – Henrik Ibsen's A Doll's House receives its world premiere at the Royal Danish Theatre in Copenhagen, with Betty Hennings as Nora, Emil Poulsen as Torvald, and Peter Jerndorff as Dr. Rank.

January–March

• 5 March – Søren Marinus Jensenm wrestler (died 1965)
• 11 March – Kristian Hansen Kofoed, politician (died 1951)

April–June

• 16 June – Sigurd Swane, painter (died 1973)

October–December

• 18 November – Edvard Weie, painter (died 1943)
• 29 November – Jacob Gade, violinist and composer (died 1963)

January–March

• 24 January – Carl Frederik Sørensen, marine painter (born 1818)

April–June

• 6 May – Louis Aumont, painter (born 1805)
• 5 June – Kristian Mantzius, actor (born 1819)

July–September

October–December

• 3 October – Peter Gemzøe, painter and lithographer (born 1811)
• 26 October – Andreas Aagesen, jurist (born 1826)
• 30 November – August Bournonville, ballet master and choreographer (born 1805)