Events from the year 1806 in Denmark.

• Monarch – Christian VII^[1]
• Prime minister – Christian Günther von Bernstorff

• 27 October – The Barony of Gaunø was established by Otto Reedtz-Thott (1785-1862) from the manors of Gavnø,Lindersvold and Strandegård.

• 24 February – Christopher Bagnæs Hansen, furniture maker (died 1868)
• 24 September – Niels Christian Kierkegaard, craftsman and lithographer (died 1882)
• 11 October – Niels Kjærbølling, ornithological writer and lithographer, founder of Copenhagen Zoo (died 1871)
• 14 October – Niels Sigfred Nebelong, historicist-style architect, resident architect for the Danish lighthouse authority (died 1871)

• 16 May – Frederick von Blücher, courtier (born 1760 in Mecklenburg-Strelitz)

Undated

• Ernst Burmeister, architect and painter (born c. 1774 in Germany)