1817 in Denmark

Undated

Art

• Christoffer Wilhelm Eckersberg completes The Death of Balder as his admission painted for admission into the Royal Danish Academy of Fine Arts.
• The 300th anniversary of the Reformation is commemorated with a medal designed by Salomon Ahron Jacobson.

• 
  Eckersberg's The Death of Balder
• 
  Medal commemorating the 300th anniversary of the Reformation

January–March

• 22 January – Johan Frederik Schlegel, lawyer and civil servant (died 1896)
• 30 January – Magnus Feilberg, bookseller and publisher (died 1900 in Norwau)
• 22 February – Niels Gade, composer (died 1890)

April–June

• 4 April – P. C. Skovgaard, national romantic landscape painter (died 1875)
• 5 April– Hansine Andræ, feminist (died 1898)
• 11 May – Frederik Hegel, bookseller and publisher (died 1887)
• 13 June – Knud Graah, industrial pioneer (died 1909).^[2]

July–September

• 7 July – Christen Andreas Fonnesbech, lawyer, landowner and politician (died 1880)
• 20 July – Johan Henrik Nebelong, architect (died 1871)

October–December

• 4 October – Andreas Frederik Krieger, politician (died 1893)
• 8 October – Ilia Fibiger, writer (born 1867)
• 26 October – Georg Grüner, landowner, politician and co-founder of Landmandsbanken (died 1890)^[3]
• 13 November – Franziska Carlsen, writer and local historian (died 1876)
• 17 November – Harald Conradsen, sculptor and medalist (died 1905)
• 8 December – Christian Emil Krag-Juel-Vind-Frijs, politician and landowner (died 1896)
• 10 December – Carl Otto Reventlow, philologist, developed a mnemonic system (died 1873)

Full date missing

• Johanne Marie Malleville, royal favorite (born 1750)
• Moses Melchior, businessman (born 1736)