Rivaz or de Rivaz is a surname. Notable people with the surname include:
Alice Rivaz (1901–1998), Swiss author Charles Montgomery Rivaz (1845–1926), British colonial administrator Claude Rivaz (1872–1958), English artist and footballer François Isaac de Rivaz (1752–1828), French inventor and politician Pierre de Rivaz (1711–1772), French clockmaker Vincent de Rivaz (born 1953), French businessman