Danish (dansk, pronounced [danˀsɡ̊] ( listen); dansk sprog, [ˈdanˀsɡ̊ ˈsb̥ʁɔʊ̯ˀ]) is a North Germanic language spoken by around six million people, principally in the country of Denmark. It is also spoken by 50,000 Germans of Danish ethnicity in the northern parts of Schleswig-Holstein, Germany, and 25,000 Danes in Norway where it holds minority language status. Danish is a mandatory subject in school in the Danish crown territories of the Faroe Islands (where it is also an official language after Faroese) and Greenland (where, however, the only official language since 2009 is Kalaallisut), as well as the former crown holding of Iceland. There are also Danish language communities in Argentina, the United States and Canada. Danish is mutually intelligible with Norwegian and Swedish (see "Classification").

Danish, together with Swedish, derives from the East Norse dialect group, while the old Norwegian dialects before the influence of Danish and Bokmål is classified as a West Norse language together with Faroese and Icelandic. A more recent classification based on mutual intelligibility separates modern spoken Danish, Norwegian and Swedish into a Mainland Scandinavian group while Icelandic and Faroese are placed in a separate category labeled Insular Scandinavian.