Italians (Italiani, itaˈljaːni) are an ethnic group native to the Italian geographical region. Italians share a common culture, history, ancestry and language. Their predecessors differ regionally, but generally include native populations such as the Etruscans, the Rhaetians, the Ligurians, the Adriatic Veneti, and the Italic peoples, including the Latins, from which the Romans emerged and helped create and evolve the modern Italian identity. Foreign influences include the ancient Greeks in Magna Graecia, and the Phoenicians, who had a presence in Sicily and Sardinia, the Celts, who settled in parts of the north, the Germanics and the Slavs. Legally, Italian nationals are citizens of Italy, regardless of ancestry or nation of residence (in effect, however, Italian nationality is largely based on jus sanguinis) and may be distinguished from ethnic Italians in general or from people of Italian descent without Italian citizenship and ethnic Italians living in territories adjacent to the Italian peninsula without Italian citizenship. The Latin equivalent of the term Italian had been in use for natives of the geographical region since antiquity.
The majority of Italian nationals are native speakers of the country's official language, Italian, a Romance language of the Indo-European language family that evolved from the Vulgar Latin, or a variety thereof, that is regional Italian. However, many of them also speak a regional or minority language native to Italy, the existence of which predates the national language. Although there is disagreement on the total number, according to UNESCO, there are approximately 30 languages native to Italy, although many are often misleadingly referred to as "Italian dialects".
Since 2017, in addition to the approximately 55 million Italians in Italy (91% of the Italian national population), Italian-speaking autonomous groups are found in neighboring nations; about a half million are in Switzerland, as well as in France, the entire population of San Marino.