Denmark–Lithuania relations

Denmark–Lithuania relations refers to the historical and current diplomatic relations between Denmark and Lithuania. Lithuania has an embassy in Copenhagen, and Denmark has an embassy in Vilnius. Denmark first recognized Lithuania in 1921 and again on 28 February 1991 after the fall of the Soviet Union. Diplomatic relations were established on 24 August 1991. The Danish recognition in 1991 has been described as "extremely important for Lithuania". Both countries are members of the European Union, NATO, Joint Expeditionary Force, Organization for Security and Co-operation in Europe and Council of Europe.

Since Lithuanian independence, Denmark has taken a leading role in supporting Lithuania with international recognition and military and internal reforms. Denmark also played a significant role in Lithuania's accession to the EU and maintains a military presence in the country.

Relations have been described as a friendly political relationship with strong defence cooperation, and active trade and investment ties. The two countries cooperate closely on the political situation in Belarus and Ukraine with Denmark having sent four F-16 jets to Lithuania in 2022 as a response to the Russo-Ukrainian crisis.