• Monarch – Christian X^[1]
• Prime minister – Knud Kristensen

• 30 August – Princess Anne-Marie, future Queen of Greece, is born to Crown Prince Frederik and Crown Princess Ingrid of Sweden.

Football edit

• B03 wins the 1945–46 Danish 1st Division. It is their ninth Danish football championship.

January—March edit

• 9 January – Mogens Lykketoft, politician
• 17 February – Valdemar Bandolowski, sailor
• 15 March – Krass Clement, photographer
• 19 March – Dan Turèll, writer (died 1993)

April–June edit

• 5 May – Leif Mortensen, cyclist
• 27 May – Niels-Henning Ørsted Pedersen, jazz bassist (died 2005)
• 2 June – Inga Nielsen, opera singer (died 2008)
• 25 June – Ulrik le Fevre, footballer and manager (doed 2024)
• 29 June – Gitte Hænning, actress

July–September edit

• 30 August – Princess Anne-Marie, future Queen of Greece

October–December edit

• 27 October – Peter Martins, ballet dancer, choreographer
• 28 October – Niels Fredborg, cyclist
• 3 November – Holger Pedersen, astronomer

January–March edit

• 3 February – Carl Theodor Zahle, politician, Council President of Denmark (born 1866)
• 9 March – William Wain Prior, major-general, commander-in-chief of the Royal Danish Army 1939–41 (born 1876)
• 26 March – Gerhard Heilmann, paleontologist, scientific illustrator (born 1859)

April–June edit

• 26 April – Oluf Ring, composer (born 1886)
• 20 May – Jacob Ellehammer, inventor (born 1871)
• 26 May – Petrine Sonne, stage and film actress (born 1870)

July–September edit

• 13 July – Valdemar Rørdam, national conservative poet, author of "Denmark in a Thousand Years" (born 1872)
• 31 August – Paul von Klenau, composer and conductor (born 1883)

October–December edit

• 10 October – Eyvind Johan-Svendsen, stage and film actor (born 1896)
• 15 December – Johannes Friis-Skotte, politician, Minister of Public Works (Transport) 1924–1926 and 1929–1935 (born 1874)

Date unknown edit

• Johanne Agerskov, intermediary (born 1873)