# Swimming at the 2020 Summer Paralympics – Women's 50 metre butterfly

The Women's 50 metre butterfly swimming events for the 2020 Summer Paralympics took place at the Tokyo Aquatics Centre from August 27 to September 3, 2021. A total of three events were contested over this distance.

## Schedule

| H | Heats | ½ | Semifinals | F | Final |
| Date | Fri 27 | Fri 27 | Sat 28 | Sat 28 | Sun 29 | Sun 29 | Mon 30 | Mon 30 | Tue 31 | Tue 31 | Wed 1 | Wed 1 | Thu 2 | Thu 2 | Fri 3 | Fri 3 |
| Event | M | E | M | E | M | E | M | E | M | E | M | E | M | E | M | E |
| S5 50m | H | F | | | | | | | | | | | | | | |
| S6 50m | | | | | | | H | F | | | | | | | | |
| S7 50m | | | | | | | | | | | | | | | H | F |

## Medal summary

The following is a summary of the medals awarded across all 50 metre butterfly events.
| Classification | Gold | Gold | Silver | Silver | Bronze | Bronze |
| S5 details | Lu Dong China | 39.54 WR | Marta Fernández Spain | 40.22 WR | Cheng Jiao China | 43.04 |
| S6 details | Jiang Yuyan China | 34.69 | Nicole Turner Ireland | 36.30 | Elizabeth Marks United States | 36.83 |
| S7 details | Danielle Dorris Canada | 32.99 WR | Mallory Weggemann United States | 34.30 | Giulia Terzi Italy | 34.32 |

## Results

The following were the results of the finals only of each of the Women's 50 metre butterfly events in each of the classifications. Further details of each event, including where appropriate heats and semi finals results, are available on that event's dedicated page.

### S5

The S5 category is for swimmers who have hemiplegia, paraplegia or short stature.
The final in this classification took place on 27 August 2021:
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Lu Dong | China | 39.54 | WR (S5) |
| | 5 | Marta Fernández Infante | Spain | 40.22 | WR (S4) |
| | 3 | Cheng Jiao | China | 43.04 | |
| 4 | 7 | Joana Maria da Silva Neves | Brazil | 45.33 | |
| 5 | 6 | Sevilay Öztürk | Turkey | 45.81 | |
| 6 | 2 | Yao Cuan | China | 46.13 | |
| 7 | 1 | Esthefany Rodrigues | Brazil | 46.49 | |
| 8 | 8 | Giulia Ghiretti | Italy | 46.66 | |

### S6

The S6 category is for swimmers who have short stature, arm amputations, or some form of coordination problem on one side of their body.
The final in this classification took place on 30 August 2021:
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Jiang Yuyan | China | 34.69 | |
| | 5 | Nicole Turner | Ireland | 36.30 | |
| | 3 | Elizabeth Marks | United States | 36.83 | AM |
| 4 | 7 | Verena Schott | Germany | 37.03 | |
| 5 | 6 | Eleanor Robinson | Great Britain | 37.08 | |
| 6 | 2 | Sara Vargas Blanco | Colombia | 37.33 | |
| 7 | 1 | Liu Daomin | China | 38.38 | |
| 8 | 8 | Viktoriia Savtsova | Ukraine | 41.04 | |

### S7

The S7 category is for swimmers who have one leg and one arm amputation on opposite side or paralysis on one side of their body. These swimmers have full control of their arms and trunk but variable function in their legs.
The final in this classification took place on 3 September 2021:
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Danielle Dorris | Canada | 32.99 | WR |
| | 5 | Mallory Weggemann | United States | 34.30 | |
| | 3 | Giulia Terzi | Italy | 34.32 | ER |
| 4 | 6 | Ani Palian | RPC | 35.73 | |
| 5 | 2 | Julia Gaffney | United States | 35.74 | |
| 6 | 8 | Nikita Howarth | New Zealand | 36.92 | |
| 7 | 7 | McKenzie Coan | United States | 37.47 | |
| 8 | 1 | An Nishida | Japan | 37.98 | |