Matthey is a surname. Notable people with the surname include:
Arthur Matthey, pseudonym of the French writer Arthur Arnould Francis Matthey (born 1942), Swiss politician George Matthey (1825–1913), English metallurgist at Johnson & Matthey Giles Matthey (born 1987), British actor Jeanne Matthey (1886–1980), French tennis player Magdalena Matthey (born 1971), Chilean singer-songwriter Maurice Matthey, Swiss rower
See also Johnson Matthey, British company Johnson Matthey Technology Review, Open Access Journal