The Canton of Bern (German: Kanton Bern,  pronunciation (help·info); French: Canton de Berne) is the second largest of the 26 Swiss cantons by both surface area and population. Located in west-central Switzerland, it borders the Canton of Jura and the Canton of Solothurn to the north. To the west lie the Canton of Neuchâtel, the Canton of Fribourg and Vaud. To the south lies the Valais. East of the canton of Bern lie the cantons of Uri, Nidwalden, Obwalden, Lucerne and Aargau.

The canton of Bern is bilingual and has a population (as of 31 December 2010) of 979,802. As of 2007^[update], the population included 119,930 (or 12.45%) foreigners. The cantonal capital, also the federal capital of Switzerland, is Bern.

Bern joined the Swiss Confederation in 1353 and was between 1803 and 1814 one of the six direcorial cantons of the Napoleonic Swiss Confederation.

The earliest traces a human presence in the area of the modern Canton is found in three caves in the Simmental region; Schnurenloch near Oberwil, Ranggiloch above Boltigen and Chilchlihöhle above Erlenbach. These caves were used at various times during the last ice age. The first open-air settlement in the area is an upper paleolithic settlement at Moosbühl in Moosseedorf. During the warmer climate of the mesolithic period, increasing forest cover restricted the movement of hunters, fishers and gatherers. Their temporary settlements were built along lake and marsh edges, which remained free of trees due to fluctuations in water level. Important mesolithic sites in the Canton are at Pieterlenmoos and Burgäschisee lake along with alpine valleys at Diemtig and Simmental. During the neolithic period, there were a number of settlements on the shores of Lake Biel, the Toteisbecken (Lobsigensee, Moossee, Burgäschisee and Inkwilersee) and along rivers (Aare, Zihl). Several of these sites are part of the Prehistoric Pile dwellings around the Alps, a UNESCO World Heritage Site.