← 1844 1843 1842 1845 in Denmark → 1846 1847 1848
Decades:	1820s 1830s 1840s 1850s 1860s
See also:	Other events of 1845 List of years in Denmark

Events from the year 1845 in Denmark.

Incumbents

• Monarch – Christian VIII^[1]
• Prime minister – Poul Christian Stemann

Events

• 15 June – Klampenborg Vandkuur-, Brønd- og Søbadeanstalt, the first spa resort in Denmark, opens.^[2]

Undated

• Henrik Hertz writes the verse drama Kong Renés Datter

Culture

Music

• 22 August – Hans Christian Lumbye's Champagne Galop premières in Tivoli Gardens to mark the second anniversary of the amusement park.

Births

• 20 May – Johan Henrik Deuntzer, prime minister (died 1918)
• 23 July – Godfred Christensen, painter (died 1928)
• 24 December – King George I of Greece (died 1913 in Greece)

Deaths

January–March

• 24 February - Prince Frederik of Hesse, nobleman, general and governor (born 1771)
• 3 June – Joachim Melchior Magens, colonial administrator and lawyer (born 1775)

July–September

• 10 July - Christian Frederik Hansen, architect (born 1756)
• 21 June – Gottfried Becker (born 1767), pharmacist and industrialist (born 1767)
• 28 July – Johanna Elisabeth Dahlén, stage actress and opera singer (born 1757)
• 4 August - Jacob Holm, industrialist, ship owner and ship builder (born 1779)