Cristiani is a surname. Notable people with the surname include:
Alfredo Cristiani (born 1947), President of El Salvador Federico Cristiani (born 2005), Italian para swimmer Gabriella Cristiani (born 1949), Italian film editor Giovanni di Bartolomeo Cristiani, Tuscan painter Quirino Cristiani (1896–1984), Argentine animation director Stefano Cristiani (born 1958), Italian astronomer Tony Cristiani, American football player