Tyssen may refer to:
People Amherst Tyssen (1843–1930), English lawyer and author Charles Daniel-Tyssen (1856–1940), English first-class cricketer John Tyssen (1889–1953), British pilot William Tyssen-Amherst, 1st Baron Amherst of Hackney (1835–1909), British politician
Other uses Tyssen Islands, Falkland Islands