• Monarch – Frederik IX^[1]
• Prime minister – Hans Hedtoft

Date unknown edit

• Lucien Gillen (LUX) and Ferdinando Terruzzi (ITA) win the Six Days of Copenhagen six-day track cycling race.

January–March edit

• 16 January – Morten P. Meldal, chemist

April–June edit

• 15 June
  • Dan Laustsen, cinematographer
  • Uffe Elbæk, politician

October–December edit

• 10 October – Lars Rebien Sørensen, business executive
• 10 November – Hans Kjeld Rasmussen, sports shooter
• 14 December – Ib Andersen, ballet dancer, choreographer, and painter.

Date unknown edit

April–June edit

• 1 June – Martin Andersen Nexø, socialist, later communist, writer (born 1869)

July–September edit

• 8 July – Sigurd Langberg, actor (born 1897)
• 29 August – Thyra Manicus-Hansen, ceramist (born 1872)

October–December edit

• 6 October – Hakon Børresen, composer (born 1876)
• 8 October – Morten Korch, writer of populist stories and romances (born 1876)
• 11 November – Johannes Giersing, chess master (born 1872)
• 18 December – Vilhelm Buhl, politician (born 1881)
• 26 December – Astrid Noack, sculptor (born 1888)