10 January – Denmark and Serbia signs a defense agreement.[2]
13 January – Lene Espersen, party leader of the Danish Conservative Party, announces her resignation from the post after a period of intense criticism in the media and from fellow party members.[3]
14 January – Lars Barfoed is elected as new political leader of the Conservative party.[4]
19 January – Denmark starts the trial against the Somali man who attacked Kurt Westergaard.[5][6]
February
24 February – A Danish family is kidnapped from their private yacht off the coast of Somalia by Somali pirates.[7]
March
13 March – By unanimous vote, Denmark's Parliament authorized direct military action by its air force to help enforce UN Security Council Resolution 1973, marking the only time so far in the state's history that military commitment was supported by full parliamentary unity.[8] The Royal Danish Air Force is participating with six F-16AM fighters, one C-130J-30 Super Hercules military transport plane and the corresponding ground crews. Only four F-16s will be used for offensive operations, while the remaining two will act as reserves.[9] The first airstrikes from Danish aircraft were carried out on 23 March with four aircraft making twelve sorties as part of Operation Odyssey Dawn.[10]The Guardian reported in May 2011, that Danish F-16 fighters killed Muammar Gaddafi's son Saif al-Arab Gaddafi.[11]
31 May – Lors Doukaiev, the would-be bomber from the Hotel Jørgensen explosion, is sentenced to 12 years imprisonment for last September's failed plan to send a letter bomb to Jyllands-Posten.[15]
3 June – Copenhagen Suborbitals, a private non-profit rocket group, makes their first successful full-scale test-launch of the HEAT 1X rocket from a self-built ramp off the coast of Bornholm.[16]
3 December – At the 24th European Film Awards, Denmark tops the list of countries with most nominations with 14 and wins several of the most prestigious awards:[26]
Best Production Designer: Jette Lehmann ( Melancholia)
31 December – Danish films sold 3.4 million tickets at the box office in Denmark in 2011, or 27% of the total ticket sale, with A Funny Man as the best selling Danish film on the home market with 471,819 admissions.[27]
