# Swimming at the 2002 Commonwealth Games – Women's 50 metre butterfly

The women's 50 metre butterfly event at the 2002 Commonwealth Games took place 30–31 July. The heats and the semi were held on 30 July, the final on 31 July.

## Results
### Final

| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Petria Thomas | Australia | 26.66 | GR |
| | 5 | Nicole Irving | Australia | 27.13 | |
| | 3 | Alison Sheppard | Scotland | 27.30 | |
| 4 | 2 | Rosalind Brett | England | 27.41 | |
| 5 | 6 | Mandy Loots | South Africa | 27.55 | |
| 6 | 1 | Joscelin Yeo | Singapore | 27.88 | |
| 7 | 7 | Kerry Martin | Scotland | 27.94 | |
| 8 | 8 | Karla Hancocks | Wales | 28.22 | |
Key: WR = World record

### Semifinals

| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Petria Thomas | Australia | 27.09 | Q |
| 2 | 1 | 4 | Nicole Irving | Australia | 27.19 | Q |
| 3 | 2 | 5 | Alison Sheppard | Scotland | 27.30 | Q |
| 4 | 1 | 5 | Mandy Loots | South Africa | 27.48 | Q |
| 5 | 2 | 3 | Rosalind Brett | England | 27.57 | Q |
| 6 | 2 | 6 | Kerry Martin | Scotland | 27.74 | Q |
| 7 | 1 | 3 | Joscelin Yeo | Singapore | 27.83 | Q |
| 8 | 2 | 8 | Karla Hancocks | Wales | 27.89 | Q |
| 9 | 1 | 6 | Georgie Lee | England | 27.97 | |
| 9 | 2 | 2 | Nadine Rolland | Canada | 27.97 | |
| 11 | 1 | 8 | Julie Douglas | Northern Ireland | 28.07 | |
| 12 | 1 | 2 | Audrey Lacroix | Canada | 28.15 | |
| 13 | 2 | 1 | Maria Papadopoulou | Cyprus | 28.19 | |
| 14 | 1 | 1 | Hannah McLean | New Zealand | 28.21 | |
| 14 | 2 | 7 | Leah Martindale | Barbados | 28.21 | |
| 16 | 1 | 7 | Sarah Ryan | Australia | 28.33 | |

### Preliminaries

| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | 4 | Petria Thomas | Australia | 27.09 | Q |
| 2 | 2 | 4 | Nicole Irving | Australia | 27.22 | Q |
| 3 | 3 | 5 | Alison Sheppard | Scotland | 27.39 | Q |
| 4 | 2 | 5 | Mandy Loots | South Africa | 27.60 | Q |
| 5 | 3 | 4 | Rosalind Brett | England | 27.80 | Q |
| 6 | 4 | 5 | Joscelin Yeo | Singapore | 27.87 | Q |
| 7 | 4 | 3 | Kerry Martin | Scotland | 27.88 | Q |
| 8 | 3 | 2 | Georgie Lee | England | 28.02 | Q |
| 9 | 3 | 3 | Nadine Rolland | Canada | 28.14 | Q |
| 10 | 4 | 7 | Audrey Lacroix | Canada | 28.17 | Q |
| 11 | 4 | 2 | Leah Martindale | Barbados | 28.18 | Q |
| 12 | 2 | 3 | Sarah Ryan | Australia | 28.23 | Q |
| 12 | 4 | 1 | Maria Papadopoulou | Cyprus | 28.23 | Q |
| 14 | 2 | 6 | Hannah McLean | New Zealand | 28.41 | Q |
| 15 | 3 | 6 | Julie Douglas | Northern Ireland | 28.43 | Q |
| 15 | 4 | 7 | Karla Hancocks | Wales | 28.43 | Q |
| 17 | 3 | 7 | Mandy Leach | Zimbabwe | 28.68 | |
| 18 | 2 | 7 | Jennifer Fratesi | Canada | 28.82 | |
| 19 | 2 | 1 | Emma Hirst | Jersey | 29.09 | |
| 20 | 3 | 1 | Caroline Pickering | Fiji | 29.11 | |
| 21 | 3 | 8 | Sharntelle McLean | Trinidad and Tobago | 29.23 | |
| 22 | 2 | 2 | Tamara Swaby | Jamaica | 29.28 | |
| 23 | 1 | 4 | Emily Crookall-Nixon | Isle of Man | 29.76 | |
| 24 | 2 | 8 | Angela Galea | Malta | 29.94 | |
| 25 | 1 | 5 | Elaine Reyes | Gibraltar | 31.79 | |
| 26 | 1 | 3 | Sana Abdul Wahid | Pakistan | 33.53 | |
| 27 | 1 | 6 | Keren Lee Visser | Zambia | 34.18 | |
| - | 4 | 8 | Natalia Roumbina | Cyprus | DQ | |