Swimming at the 2020 Summer Paralympics – Women's 100 metre butterfly

The Women's 100 metre butterfly swimming events for the 2020 Summer Paralympics took place at the Tokyo Aquatics Centre from 25 August to 3 September 2021. A total of five events were contested over this distance.

Medal summary
The following is a summary of the medals awarded across all 100 metre butterfly events.

Results
The following were the results of the finals only of each of the Women's 100 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.

S8
The S8 category is for swimmers who have a single amputation, or restrictive movement in their hip, knee and ankle joints.

The final in this classification took place on 3 September 2021:

S9
The S9 category is for swimmers who have joint restrictions in one leg, or double below-the-knee amputations.

The final in this classification took place on 2 September 2021:

S10
The S10 category is for swimmers who have minor physical impairments, for example, loss of one hand.

The final in this classification took place on 31 August 2021:

S13
The S13 category is for swimmers who have minor visual impairment and have high visual acuity. They are required to wear blackened goggles to compete. They may wish to use a tapper.

The final in this classification took place on 25 August 2021:

S14
The S14 category is for swimmers who have an intellectual impairment.

The final in this classification took place on 25 August 2021: