Vincenzi is a surname. Notable people with the surname include:

• Tommaso Vincenzi (died 1478), Italian Roman Catholic Bishop of Pesaro (1475–1478) and Bishop of Terni (1472–1475)
• Giacomo Vincenzi (died 1619), Italian bookseller and music printer from Venice, also known as Giacomo Vincenti

• Alfredo Ciriaco De Vincenzi (1907–date of death unknown), Italian Argentine professional football player
• Francesco Vincenzi (born 1956), Italian footballer and manager
• Giorgio De Vincenzi (1884–1965), Italian painter and etcher
• Giovanni Vincenzi (1905–1970), Italian footballer
• Guido Vincenzi (1932–1997), Italian footballer
• Marta Vincenzi (born 1947), Italian politician
• Penny Vincenzi (1939-2018), British novelist