| 18 September 1984 | First solo Atlantic crossing in a helium balloon | first | Joseph W. Kittinger |
| 04 August 1984 | Smallest aircraft, monoplane | | Baby Bird |
| 21 July 1984 | Oldest person to win a national draughts championship | | Asa Long |
| 01 July 1984 | Oldest competitive videogamer | | Doris Self |
| April 1984 | Highest hyperacuity | | Dr Dennis M. Levi |
| 27 January 1984 | Farthest long jump (male) (indoors) | 8.79 metre(s) | Carl Lewis |
| 15 January 1984 | First person to score one billion points on a videogame | | Tim McVey |
| 1984 | Most gold medals won at a single Summer Olympic Games - Country | 83 total number | USA |
| 1984 | First Paralympic athlete to compete at the Olympic Games | first | Neroli Fairhall |
| 1984 | Most prolific amateur sleuth | | Jessica Fletcher |
| from 1984 to 2016 | Most Basketball Olympic Golds (Women) | 8 total number | USA |
| 1984-1987, 1990, 1991, 1997 | Most wins of Female Vocalist of the Year at the Academy of Country Music Awards | | Reba McEntire |
| 1984 | Oldest bridegroom | 103/84 year(s):day(s) | Harry Stevens |
| 1984 | Most gold medals won at a single Summer Paralympics | | USA |
| 1984 | Oldest singleton twin ever | | Mary Belle Murphy Crombie, Mabel Jean Murphy Crombie |