1814 in Denmark

• Monarch – Frederick VI^[1]
• Prime minister – Frederik Moltke, Fredrik Julius Kaas, Joachim Godske Moltke

• 14 January – The signing of the Treaty of Kiel
  • The Gunboat War ends.
  • Helgoland is ceded to the United Kingdom.
  • Kingdom of Norway is ceded to the King of Sweden, ending the Danish-Norwegian Union.^[2]
  • Anholt is returned to Denmark.
  • Faroe Islands, Greenland and Iceland becomes a part of Denmark.

• 7 May – Christian Julius Hansen, composer, organist, voice teacher and choirmaster (died 1875)
• 9 May – Princess Marie Luise Charlotte of Hesse-Kassel (died 1895)

Ø3 July – Ferdinand Didrichsen, physician and botanist (died 1887)

• 24 November – Adolph Hannover, physician (died 1894)
• 11 December – Georg Emil Tuxen. maval officer (born 1885)

• 14 June – Frederick Christian II, Duke, prince and feudal magnate (born 1765)
• 3 September – Amalie Münster, writer (born 1767)