Albania, officially the Republic of Albania, is a country in Southeast Europe. It is located in the Balkans, on the Adriatic and Ionian Seas within the Mediterranean Sea, and shares land borders with Montenegro to the northwest, Kosovo to the northeast, North Macedonia to the east and Greece to the south. With an area of 28,748 km² (11,100 sq mi), it has a varied range of climatic, geological, hydrological and morphological conditions. Albania's landscapes range from rugged snow-capped mountains in the Albanian Alps and the Korab, Skanderbeg, Pindus and Ceraunian Mountains, to fertile lowland plains extending from the Adriatic and Ionian seacoasts. Tirana is the capital and largest city in the country, followed by Durrës, Vlorë, and Shkodër.

Albania was inhabited by several Illyrian tribes, among them the Ardiaei, Bylliones, Dassaretii, Enchele, and Taulantians, with the Chaonians settled in the southwest. Several colonies were founded by the Ancient Greeks along the Albanian coast, most notably Apollonia. The Illyrians were the dominant power in Albania before the rise of Macedon. Following the Illyrian Wars, Albania was integrated into the Roman Empire and remained in the Byzantine Empire after its partition. During the Middle Ages, several Albanian principalities emerged, most notably the Principality of Arbanon, Kingdom of Albania, Principality of Albania and Albania Veneta. In the 15th century, Albania became a center of resistance against Ottoman expansion under the leadership of Gjergj Kastrioti Skanderbeg, whose military campaigns repelled Ottoman advances for over two decades. Although incorporated into the Ottoman Empire, Albania retained distinct cultural and social identities throughout four centuries of foreign rule, culminating in the Albanian Renaissance in the 19th century. Albania declared independence in 1912, followed by a turbulent 20th century marked by monarchy, foreign occupation during both World Wars, and a repressive communist regime under Enver Hoxha.

Since its independence in 1912, Albania has undergone diverse political evolution, transitioning from a monarchy to a communist regime before becoming a sovereign parliamentary constitutional republic. Governed by a constitution prioritising the separation of powers, the country's political structure includes a parliament, a ceremonial president, a functional prime minister and a hierarchy of courts. Albania is a developing country with an upper-middle income economy driven by the service sector, with manufacturing and tourism, which attracted over 11 million visitors in 2024, also playing significant roles. After the dissolution of its communist system the country shifted from centralised planning to an open market economy. Albanian citizens have universal health care access and free primary and secondary education. The country is an official candidate for membership in the European Union and has been negotiating accession since 2022.

The historical origins of the term "Albania" can be traced back to medieval Latin, with its foundations believed to be associated with the Illyrian tribe of the Albani. This connection gains further support from the work of the Ancient Greek geographer Ptolemy during the 2nd century AD, where he included the settlement of Albanopolis situated to the northeast of Durrës. The presence of a medieval settlement named Albanon or Arbanon hints at the possibility of historical continuity. The precise relationship among these historical references and the question of whether Albanopolis was synonymous with Albanon remain subjects of scholarly debate.

The Byzantine historian Michael Attaliates, in his 11th-century historical account, provides the earliest undisputed reference to the Albanians, when he mentions them having taken part in a revolt against Constantinople in 1079. He also identifies the Arbanitai as subjects of the Duke of Dyrrachium. In the Middle Ages, Albania was denoted as Arbëri or Arbëni by its inhabitants, who identified themselves as Arbëreshë or Arbëneshë. Albanians employ the terms Shqipëri or Shqipëria for their nation, designations that trace their historical origins to the 14th century. But only in the late 17th and early 18th centuries did these terms gradually supersede Arbëria and Arbëreshë among Albanians. These two expressions are widely interpreted to symbolise "Children of the Eagles" and "Land of the Eagles".

Mesolithic habitation in Albania has been evidenced in several open air sites which during that period were close to the Adriatic coastline and in cave sites. Mesolithic objects found in a cave near Xarrë include flint and jasper objects along with fossilised animal bones, while those discoveries at Mount Dajt comprise bone and stone tools similar to those of the Aurignacian culture. The Neolithic era in Albania began around 7000 BC and is evidenced in finds which indicate domestication of sheep and goats and small-scale agriculture. A part of the Neolithic population may have been the same as the Mesolithic population of the southern Balkans like in the Konispol cave where the Mesolithic stratum co-exists with Pre-Pottery Neolithic finds. Cardium pottery culture appears in coastal Albania and across the Adriatic after 6500 BC, while the settlements of the interior took part in the processes which formed the Starčevo culture. The Albanian bitumen mines of Selenicë provide early evidence of bitumen exploitation in Europe, dating to Late Neolithic Albania (from 5000 BC), when local communities used it as pigment for ceramic decoration, waterproofing, and adhesive for reparing broken vessels. The bitumen of Selenicë circulated towards eastern Albania from the early 5th millennium BC. First evidence of its overseas trade export comes from Neolithic and Bronze Age southern Italy. The high-quality bitumen of Selenicë has been exploited throughout all the historical ages since the Late Neolithic era until today.

The Indo-Europeanisation of Albania in the context of the IE-isation of the western Balkans began after 2800 BC. The presence of the Early Bronze Age tumuli in the vicinity of later Apollonia dates to 2679±174 calBC (2852-2505 calBC). These burial mounds belong to the southern expression of the Adriatic-Ljubljana culture (related to later Cetina culture) which moved southwards along the Adriatic from the northern Balkans. The same community built similar mounds in Montenegro (Rakića Kuće) and northern Albania (Shtoj). The first archaeogenetic find related to the IE-isation of Albania involves a man with predominantly Yamnaya ancestry buried in a tumulus of northeastern Albania which dates to 2663–2472 calBC. During the Middle Bronze Age, Cetina culture sites and finds appear in Albania. Cetina culture moved southwards across the Adriatic from the Cetina valley of Dalmatia. In Albania, Cetina finds are concentrated around southern Lake Shkodër and appear typically in tumulus cemeteries like in Shkrel and Shtoj and hillforts like Gajtan (Shkodër) as well as cave sites like Blaz, Nezir and Keputa (central Albania) and lake basin sites like Sovjan (southeastern Albania).

The incorporated territory of Albania was historically inhabited by Indo-European peoples, amongst them numerous Illyrian and Epirote tribes. There were also several Greek colonies. The territory referred to as Illyria corresponded roughly to the area east of the Adriatic Sea in the Mediterranean Sea extending in the south to the mouth of the Vjosë. The first account of the Illyrian groups comes from Periplus of the Euxine Sea, a Greek text written in the 4th century BC. The Bryges were also present in central Albania, while the south was inhabited by the Epirote Chaonians, whose capital was at Phoenice. Other colonies such as Apollonia and Epidamnos were established by Greek city-states on the coast by the 7th century BC.