• Monarch – Christian X^[1]
• Prime minister – Thomas Madsen-Mygdal

• 15 August – Experimenterende Danske Radioamatører is founded.

• 26 June – B 93 wins their second Danish football championship by defeating Skovshoved IF 5–1 in the final of the 1926–27 Landsfodboldturneringen at Københavns Idrætspark.
• 1 October – Køge Boldklub is founded.

January–March edit

• 9 January – Thorkild Hansen, author (died 1989)
• 26 March – Palle Sørensen, convicted murderer (died 2018)

April–June edit

• 1 May – Greta Andersen, swimmer (died 2023)

July–September edit

• 19 August – Gert Petersen, journalist and politician (died 2009)

October–December edit

• 8 November – Jørgen Reenberg, actor (died 2023)

January–March edit

• 14 January – Niels Thorkild Rovsingm surgeon (born 1862)
• 15 January – Harald Giersing, painter (born 1851)
• 19 February – Georg Brandes, critic and scholar (born 1842)
• 23 February – ]Sveinbjörn Sveinbjörnsson, composer (born 1847 in Iceland)
• 25 March – Johanne Hesbeck, photographer (born 1873)
• 27 March – Klaus Berntsen, politician (born 1844)

April–June edit

• 12 May – Vilhelm Thomsen, linguist (born 1842])
• 27 May – Oscar Stribolt, stage and film actor during the silent film era (born 1872)
• 28 June – Otto Bache, painter (born 1839)

July–September edit

• 5 August – Ib Georg Jensen, ceramist, designer and author (died 2021)
• 31 August – Alhed Larsen, painter (born 1872)
• 12 September – Peter Nicolaj Arbo, businessman and landowner (born 1766)
• 19 September – Michael Ancher, painter (born 1849)

October–December edit

• 11 November – Wilhelm Johannsen, pharmacist and botanist (born 1857)
• 21 November – Laurits Tuxen, painter and sculptor (born 1853)