Alciati is an Italian surname. Notable people with the surname include:
Andrea Alciato, or Alciati (1492–1550) (Andreas Alciatus), Italian jurist Dr. Gian Paolo Alciati della Motta (1515–1573) Italian Calvinist Francesco Alciati (1522–1580), Italian Cardinal Enrique Alciati (died after 1912), French-Italian sculptor