The following is a compilation of people who have mysteriously disappeared, whose death is not substantiated, or whose whereabouts are unknown and who may be presumed deceased.
- Dorothy Arnold - Manhattan socialite - 1910
- Benjamin Bathurst - British envoy - 1809
- Ambrose Bierce - Author - 1913
- Hale Boggs - American Congressman - 1972
- Martin Bormann - Nazi leader - 1945
- D. B. Cooper - skyjacker - 1971
- Joseph F. Crater - Associate Justice of the New York State Supreme Court - 1930
- Amelia Earhart - pilot - 1937
- Richey Edwards - member of Welsh rock band the Manic Street Preachers
- Wallace D. Fard - Nation of Islam leader - 1934
- Percy Fawcett - British archaeologist and explorer - 1925
- Jesús María de Galíndez - scholar and activist - 1956
- Richard Halliburton - author and adventurer - 1939
- Jimmy Hoffa - Union leader - 1975
- Harold Holt - Australian Prime Minister - 1967
- Philip Christoph von Königsmarck, Swedish count, lover of George I of Great Britains wife Sophia, Princess of Zelle - 1694
- Lord Lucan - dapper murder suspect - 1974
- Glenn Miller - bandleader - 1944
- Michael Rockefeller - son of Nelson Rockefeller - 1961
- Jim Thompson - designer famous for Thai silks - 1967
- Andrew Carnegie Whitfield - nephew of Andrew Carnegie - 1938