- a country in northwestern Europe, on the Jutland peninsula and many islands, between the North and the Baltic seas; population 5,500,500 (est. 2009); capital, Copenhagen; official language, Danish. Danish name Danmark.
Denmark emerged as a separate country during the Viking period of the 10th and 11th centuries. In the 14th century Denmark and Norway were united under a Danish king; the union was joined between the late 1300s and 1523 by Sweden, and Norway was ceded to Sweden in 1814. Although neutral, Denmark was occupied by Germany for much of World War II. It joined the EC (now the EU) in 1973