Swimming at the 1984 Summer Olympics – Women's 100 metre butterfly
The final of the women's 100 metre butterfly event at the 1984 Summer Olympics was held in the McDonald's Olympic Swim Stadium in Los Angeles, California, on August 2, 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 |
| 2 August | Heat 4 | Mary T. Meagher | | 59.05 | |
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 | 4 | 4 | Mary T. Meagher | | 59.05 | Q, |
| 2 | 5 | 4 | Jenna Johnson | | 59.99 | Q |
| 3 | 5 | 5 | Annemarie Verstappen | | 1:01.50 | Q |
| 4 | 3 | 5 | Michelle MacPherson | | 1:01.57 | Q |
| 5 | 4 | 5 | Janet Tibbits | | 1:01.97 | Q |
| 6 | 2 | 5 | Conny van Bentum | | 1:02.01 | Q |
| 7 | 2 | 4 | Karin Seick | | 1:02.21 | Q |
| 8 | 3 | 6 | Ina Beyermann | | 1:02.36 | Q |
| 9 | 1 | 4 | Lisa Curry-Kenny | | 1:02.47 | q |
| 10 | 1 | 5 | Kiyomi Takahashi | | 1:02.79 | q |
| 11 | 2 | 3 | Agneta Eriksson | | 1:02.97 | q |
| 12 | 4 | 3 | Nicola Fibbens | | 1:02.98 | q |
| 13 | 5 | 3 | Ann Osgerby | | 1:03.09 | q |
| 14 | 1 | 3 | Anna Doig | | 1:03.15 | q |
| 15 | 4 | 6 | Sonja Hausladen | | 1:03.20 | q |
| 16 | 3 | 4 | Takemi Ise | | 1:03.37 | q |
| 17 | 1 | 6 | Agneta Mårtensson | | 1:03.84 | |
| 17 | 3 | 3 | Marie Moore | | 1:03.84 | |
| 19 | 3 | 2 | Roberta Lanzarotti | | 1:03.88 | |
| 20 | 4 | 2 | Li Jinlan | | 1:03.97 | |
| 21 | 5 | 6 | Carole Brook | | 1:03.99 | |
| 22 | 2 | 6 | Shelley Cramer | | 1:04.43 | |
| 23 | 2 | 2 | Brigitte Wanderer | | 1:05.22 | |
| 24 | 5 | 2 | Cristina Quintarelli | | 1:05.35 | |
| 25 | 3 | 7 | Faten Ghattas | | 1:05.91 | |
| 26 | 4 | 7 | Karin Brandes | | 1:05.96 | |
| 27 | 2 | 7 | Julie Parkes | | 1:06.20 | |
| 28 | 5 | 1 | María Urbina | | 1:06.65 | |
| 29 | 5 | 7 | Jodie Lawaetz | | 1:06.82 | |
| 30 | 4 | 1 | Blanca Morales | | 1:06.99 | |
| 31 | 1 | 7 | Kathy Wong | | 1:07.25 | |
| 32 | 3 | 1 | Nevine Hafez | | 1:10.45 | |
| 33 | 2 | 1 | Karen Slowing-Aceituno | | 1:10.68 | |
| 34 | 1 | 1 | Sharon Pickering | | 1:11.49 | |
| 35 | 5 | 8 | Daniela Galassi | | 1:06.82 | |
| 1 | 2 | Hadar Rubinstein | | | |
Finals
Final A
