Giordani is an Italian surname. Notable people with the surname include:
Aldo Giordani (1914–1992) - Italian cinematographerCarmine Giordano (c. 1685–1758) - Italian composer and organistClaudia Giordani (born 1955) - Italian former alpine skierDomenico Giordani, O.F.M. Obs. (died 1640) - Roman Catholic prelate, Bishop of IserniaFrancesco Giordani (1896–1961) - Italian research chemist and scientistGiuseppe Giordani (1751–1798) - Italian composer of mainly operasIgino Giordani (1894–1980), Italian politician, writer and journalistLeonardo Giordani (born 1977) - former Italian cyclistIvan Giordani (born 1973) - Italian bobsledderLeonardo Giordani (born 1977) - former Italian cyclistMarcello Giordani (born 1963) - Italian operatic tenorPietro Giordani (1774–1848) - Italian writer, classical literary scholarTommaso Giordani (c. 1730-1733 – before 1806) - Italian composer active in England and in Ireland