Swimming at the 1984 Summer Olympics – Women's 100 metre backstroke
The final of the women's 100 metre backstroke event at the 1984 Summer Olympics was held in the McDonald's Olympic Swim Stadium in Los Angeles, California, on July 31, 1984.Records
Prior to this competition, the existing world and Olympic records were as follows.Results
Heats
Rule: The eight fastest swimmers advance to final A, while the next eight to final B.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Betsy Mitchell | | 1:02.53 | Q |
| 2 | 1 | 4 | Theresa Andrews | | 1:02.94 | Q |
| 2 | 4 | 5 | Jolanda de Rover | | 1:02.94 | Q |
| 4 | 4 | 2 | Beverley Rose | | 1:03.61 | Q, NR |
| 5 | 4 | 4 | Carmen Bunaciu | | 1:03.79 | Q |
| 6 | 2 | 5 | Svenja Schlicht | | 1:04.02 | Q |
| 7 | 3 | 4 | Anca Pătrășcoiu | | 1:04.16 | Q |
| 8 | 1 | 3 | Brigitte van der Lans | | 1:04.57 | |
| 8 | 2 | 5 | Carmel Clark | | 1:04.57 | |
| 10 | 2 | 3 | Manuela Carosi | | 1:04.77 | q |
| 11 | 3 | 5 | Georgina Parkes | | 1:04.90 | q |
| 12 | 3 | 3 | Reema Abdo | | 1:04.92 | q |
| 13 | 1 | 5 | Audrey Moore | | 1:04.96 | q |
| 14 | 1 | 6 | Catherine White | | 1:05.03 | q |
| 15 | 4 | 7 | Sabine Pauwels | | 1:05.17 | q |
| 16 | 3 | 6 | Eva Gysling | | 1:05.18 | q |
| 17 | 3 | 2 | Sandra Dahlmann | | 1:05.27 | |
| 18 | 1 | 7 | Naomi Sekido | | 1:05.60 | |
| 19 | 1 | 2 | Michelle MacPherson | | 1:06.04 | |
| 20 | 4 | 6 | Anna-Karin Eriksson | | 1:06.09 | |
| 21 | 4 | 3 | Teresa Rivera | | 1:06.39 | |
| 22 | 2 | 6 | Yolande van der Straeten | | 1:07.07 | |
| 23 | 3 | 7 | Nozomi Sunouchi | | 1:07.23 | |
| 24 | 2 | 7 | Choi Yun-hui | | 1:07.35 | |
| 25 | 3 | 1 | Guo Huaying | | 1:08.21 | |
| 26 | 1 | 1 | Lotta Flink | | 1:09.70 | |
| 27 | 4 | 8 | Kathy Wong | | 1:10.19 | |
| 28 | 2 | 8 | Christine Jacob | | 1:10.28 | |
| 29 | 1 | 8 | Sharon Pickering | | 1:10.49 | |
| 30 | 2 | 1 | Petra Bekaert | | 1:10.60 | |
| 31 | 3 | 8 | Helen Chow | | 1:11.30 | |
| 4 | 1 | Lise Lotte Nylund | | | |
Swimoff
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Carmel Clark | | 1:04.33 | Q, NR |
| 2 | 4 | Brigitte van der Lans | | 1:04.82 | q |
Finals
Final B
Final A
