Swimming at the 1984 Summer Olympics – Women's 800 metre freestyle
The final of the women's 800 metre freestyle event at the 1984 Summer Olympics was held at the McDonald's Olympic Swim Stadium in Los Angeles, California, on August 3, 1984.Records
Prior to this competition, the existing world and Olympic records were as follows.
The following records were established during the competition:
| Date | Round | Name | Nation | Time | Record |
| 3 August | Final A | Tiffany Cohen | | 8:24.96 | |
Results
Heats
Rule: The eight fastest swimmers advance to final A.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Michele Richardson | | 8:32.64 | Q |
| 2 | 2 | 5 | Anna McVann | | 8:35.19 | Q |
| 3 | 1 | 4 | Sarah Hardcastle | | 8:35.87 | Q |
| 4 | 1 | 5 | Carla Lasi | | 8:41.84 | Q, NR |
| 5 | 3 | 4 | Tiffany Cohen | | 8:41.86 | Q |
| 6 | 3 | 6 | Karen Ward | | 8:45.37 | Q |
| 7 | 2 | 2 | Monica Olmi | | 8:45.83 | Q |
| 8 | 3 | 5 | Jolande van der Meer | | 8:46.58 | Q |
| 9 | 3 | 2 | Ann Linder | | 8:50.80 | |
| 10 | 2 | 6 | Donna McGinnis | | 8:51.71 | |
| 11 | 1 | 6 | Birgit Kowalczik | | 8:53.34 | |
| 12 | 3 | 1 | Irma Huerta | | 8:56.18 | |
| 13 | 3 | 3 | Susie Baumer | | 8:56.40 | |
| 14 | 1 | 3 | Annabelle Cripps | | 8:58.09 | |
| 15 | 2 | 3 | Laurence Bensimon | | 9:01.75 | |
| 16 | 1 | 7 | Nadia Krüger | | 9:07.95 | |
| 17 | 3 | 7 | Lisa Ann Wen | | 9:09.73 | |
| 18 | 2 | 7 | Junko Sakurai | | 9:13.27 | |
| 19 | 2 | 8 | Karen Slowing-Aceituno | | 9:20.68 | |
| 20 | 1 | 1 | Chang Hui-chien | | 9:34.93 | |
| 1 | 2 | Sofia Dara | | | |
| 2 | 1 | Hadar Rubinstein | | | |
| 3 | 8 | Rosa Fuentes | | | |
Final
