Bavarians are an ethnographic group of Germans of the Bavaria region, a state within Germany. The group's dialect or speech is known as the Bavarian language, native to Altbayern, roughly the territory of the Electorate of Bavaria in the 17th century.

Bavarian, alternately Austro-Bavarian, is a major group of Upper German varieties spoken in the southeast of the German language area, including the German state of Bavaria, most of Austria and the Italian region of South Tyrol. Prior to 1945, Bavarian was also prevalent in parts of the southern Sudetenland and western Hungary. Bavarian is spoken by approximately 12 million people in an area of around 125,000 square kilometres (48,000 sq mi), making it the largest of all German dialects. In 2008, 45 percent of Bavarians claimed to use only dialect in everyday communication.