Ansaldi is an Italian surname. Notable people with the surname include:
Casto Innocenzio Ansaldi (1710–1780), Italian professor, theologian and archaeologist (born 1973), Argentine TV host Cristian Ansaldi (born 1986), Argentine footballer Giovanni Andrea Ansaldi (1584–1630), Italian painter Innocenzio Ansaldi (1734–1816), Italian painter and writer (1934–2021), Brazilian ballet dancer, choreographer and actress Michele Ansaldi, Italian automobile engineer, designer, and industrialist
See also Ansaldo (disambiguation)