The Democratic Party of Socialists of Montenegro is a social-democratic and populist political party in Montenegro. A former long-time ruling party sitting at the opposition for the first time as of 2020, it was formed on 22 June 1991 as the successor of the League of Communists of Montenegro, which had governed Montenegro within the Socialist Federal Republic of Yugoslavia since World War II, and has remained a major force in the country ever since. The party is a member of the Socialist International and the Progressive Alliance, and an associate of the Party of European Socialists. During the 1990s, DPS was the major centre-left, social-democratic party in favour of Serbian–Montenegrin unionism. However, since 1997, the party has embraced Montenegrin independence and has been improving ties with the West, slowly turning into a catch-all party embracing Atlanticism, Montenegrin nationalism, neoliberalism, and pro-Europeanism.

Montenegrin is a normative variety of the Serbo-Croatian language mainly used by Montenegrins and is the official language of Montenegro. Montenegrin is based on the most widespread dialect of Serbo-Croatian, Shtokavian, more specifically on Eastern Herzegovinian, which is also the basis of Standard Croatian, Serbian, and Bosnian.