Vial is a French, English, and Italian surname. Notable people with the surname include:
Del Vial (1891–?), French World War I flying ace Dennis Vial (born 1969), Canadian ice hockey player Laurent Vial (born 1959), Swiss cyclist Leigh Vial (1909–1943), Australian patrol officer and explorer Manuel Camilo Vial (1804–1882), Chilean politician Noelle Vial (1959–2003), Irish poet Octavio Vial (1918–1989), French football manager Patrick Vial (born 1946), French judoka Pedro Vial (ca. 1746–1814) French explorer in North America Pierre-Alexandre Vial (born 1975), French decathlete Stéphane Vial (born 1973), French shot putter