Macedonian nationalism is a general grouping of nationalist ideas and concepts among ethnic Macedonians that were first formed in the late 19th century among separatists seeking the autonomy of the region of Macedonia from the Ottoman Empire. The idea evolved during the early 20th century alongside the first expressions of ethnic nationalism among the Slavs of Macedonia. The separate Macedonian nation gained recognition during World War II when the Socialist Republic of Macedonia was created as part of Yugoslavia. Macedonian historiography has since established links between the ethnic Macedonians and various historical events and individual figures that occurred in and originated from Macedonia, which range from the Middle Ages up to the 20th century. Following the independence of the Republic of Macedonia in the late 20th century, issues of Macedonian national identity have become contested by the country's neighbours, as some adherents to aggressive Macedonian nationalism, called Macedonism, hold more extreme beliefs such as an unbroken continuity between ancient Macedonians, and modern ethnic Macedonians, and views connected to the irredentist concept of a United Macedonia, which involves territorial claims on a large portion of Greece and Bulgaria, along with smaller regions of Albania, Kosovo and Serbia.

Macedonian is an Eastern South Slavic language. It is part of the Indo-European language family, and is one of the Slavic languages, which are part of a larger Balto-Slavic branch. Spoken as a first language by around 1.6 million people, it serves as the official language of North Macedonia. Most speakers can be found in the country and its diaspora, with a smaller number of speakers throughout the transnational region of Macedonia. Macedonian is also a recognized minority language in parts of Albania, Bosnia and Herzegovina, Romania, and Serbia and it is spoken by emigrant communities predominantly in Australia, Canada and the United States.