• Monarch – Margrethe II^[1]
• Prime minister – Poul Schlüter

• 2 February – Squatters are evicted from the Black Horse, a former roadside inn, on Vesterbrogade in Copenhagen after four years.^[2]

• 26 March – At the 62nd Academy Awards, Kaspar Rostrup's Waltzing Regitze is among the five films nominated for Best Foreign Language Film but the Oscar goes to the Italian Cinema Paradiso.

Badminton edit

• 8–14 April – With five gold medals, one silver medal and three bronze medals, Denmark finishes as the best nation at the 12th European Badminton Championships in Moscow, Soviet Union.
• 24– 28 March – 1990 Denmark Open
  • Poul-Erik Høyer Larsen wins gold in men's single by defeating Morten Frost in the final
  • Lotte Olsen and Dorte Kjær win gold in women's double by defeating Gillian Gowers and Gillian Clark in the final.
  • Thomas Lund and Pernille Dupont win gold in mixed double by defeating Henrik Svarrer and Marlene Thomsen in the final.

Cycling edit

• 24 March – Søren Lilholt wins 1990 E3 Prijs Vlaanderen.
• 14 October – Rolf Sørensen wins 1990 Paris–Tours.

Soccer edit

• Summer of 1992 wins Denmark a Europe tournament for soccer.

• 14 March – Şaban Özdoğan, footballer
• 23 April – Mathias "Zanka" Jørgensen, football player
• 1 June – Kennie Chopart, footballer
• 11 July – Caroline Wozniacki, tennis player
• 22 September – Peter Ankersen, footballer

• 19 June – Steen Eiler Rasmussen, architect and writer (born 1898)
• 18 December – Grethe Glad, fashion designer and educator (born 1891)
• 30 December – Albert Mertz, painter (born 1920)

Full date unknown edit

• Harald Salomon, medallist and sculptor (born (1900)

• 1990 in Danish television