In ancient Rome, the vicus (plural vici) was a neighborhood. During the Republican era, the four regiones of the city of Rome were subdivided into vici. In the 1st century BC, Augustus reorganized the city for administrative purposes into 14 regions, comprising 265 vici. Each vicus had its own board of officials who oversaw local matters. These administrative divisions are recorded as still in effect at least through the mid-4th century.

Vicús culture was an important early culture in Peru from 1000/200 BCE to 300/600 CE. They lived in the Piura region in the northwestern coast of Peru.