Einaudi is an Italian surname. Notable people with the surname include:

• Luigi Einaudi (1874–1961), Italian politician
• Mario Einaudi (1904–1994), Italian political scientist, son of Luigi
• Giulio Einaudi (1912–1999), Italian publisher, son of Luigi and father of Ludovico
• Giulio Einaudi (prelate) (1928–2017), Italian Roman Catholic archbishop and diplomat, Apostolic Nuncio
• Luigi R. Einaudi (born 1936), American diplomat
• Ludovico Einaudi (born 1955), Italian pianist and composer, son of the publisher Giulio

• Einaudi Institute for Economics and Finance, in Rome
• Giulio Einaudi Editore, a publishing house founded by Giulio, now an imprint of Arnoldo Mondadori Editore
• Reinaudi (disambiguation)