Aiolfi is an Italian patronymic surname, meaning "son of Aiolfo." Aiolfo itself is a variant form of the personal names Agilulf or Aghinolfo, both derived from the Germanic name Agilulf. This ancestor name combines the elements agil ("edge, blade") and wolf ("wolf"), evoking a formidable martial image — the edge or point of a wolf. The name Agilulf carries historical weight. Notably, it was borne by a 6th-century king of the Lombards, Agilulf, who reigned from 590 to 616, and by an 8th-century saint, Agilulf, a bishop of Cologne. Through the patronymic Aiolfi, these ancient names live on in modern Italian surnames, typically found in northern Italy, especially in Lombardy and surrounding regions. As a surname, Aiolfi is indeclinable in Italian and may be used for both males and females. Its etymology is documented in Italian surname databases, such as the Mappa dei Cognomi, which tracks the geographic distribution and historical roots of Italian family names.