Swimming at the 2004 Summer Paralympics – Women's 100 metre butterfly S12

The Women's 100 metre butterfly S12 swimming event at the 2004 Summer Paralympics was competed on 21 September. It was won by Joanna Mendak, representing.

1st round
21 Sept. 2004, morning session
 * Heat 1

21 Sept. 2004, morning session
 * Heat 2

Final round
21 Sept. 2004, evening session