1903 in Denmark

Events from the year 1903 in Denmark.

Incumbents

Monarch – Christian IX{{cite web |title=Christian IX {{!}} king of Denmark |url=https://www.britannica.com/biography/Christian-IX |website=Encyclopedia Britannica |access-date=17 June 2019 |language=en}}
Prime minister – Johan Henrik Deuntzer

2 March {{ndash}} A Social Democrat is elected as lord mayor in Copenhagen for the first time.{{cite web|url=http://www.kobenhavnshistorie.dk/bog/khsd/1900/1903.html|title=1903|publisher=Selskabet for Københavns Historie|access-date=2010-01-20|archive-url=https://web.archive.org/web/20090301062900/http://www.kobenhavnshistorie.dk/bog/khsd/1900/1903.html|archive-date=1 March 2009|url-status=dead}}
18 April {{ndash}} The local government of Saint Croix in the Danish West Indies issues a provisional Ordinance concerning measures against Glanders in St. Croix
16 June {{ndash}} The 1903 Danish Folketing election is held.

2 May {{ndash}} Boldklubben 1903 is founded.
16–22 August {{ndash}} The 1903 UCI Track Cycling World Championships are held in Copenhagen.
Thorvald Ellegaard wins gold in men's sprint for the third year in a row.

10 January – Jens August Schade, poet (died 1978)
21 April – Hans Hedtoft, politician, former prime minister (died 1955)
23 June – Hans Christian Branner, writer (died 1966){{cite web|url=https://www.britannica.com/biography/Hans-Christian-Branner|title=Hans Christian Branner|website=Encyclopedia Britannica|access-date=13 October 2021}}
30 July – Anna Borg, Danish-Icelandic actress (died 1963){{cite encyclopedia|last=Wiingaard|first=Jytte|title=Anna Borg|url=https://kvindebiografiskleksikon.lex.dk/Anna_Borg|encyclopedia=Dansk kvindebiografisk leksikon|language=da|date=20 October 2022|orig-date=2001|access-date=29 October 2022}}
28 November – Willy Gervin, cyclist (died 1951)

11 May – Vilhelm Kyhn, painter and educator (born 1819)
3 May {{ndash}} Louise Nimb, restaurateur (born 1842)
12 October – Erhard Frederiksen, agriculturalist (born 1843){{cite encyclopedia |url=https://biografiskleksikon.lex.dk/Erhard_Frederiksen |last=Christensen |first=Anton |title=Erhard Frederiksen |encyclopedia=Dansk Biografisk Leksikon |date=17 July 2011 |language=da |access-date=2 October 2021}}
11 December – Heinrich Tønnies, photographer (born 1825){{cite dictionary |url=https://www.kulturarv.dk/kid/VisKunstner.do?kunstnerId=11089&wsektion=alle |title=Artist: H. Tønnies |dictionary=Kunstindeks Danmark & Weilbachs kunstnerleksikon |language=da |access-date=27 November 2021}}