| Event: | Women's 100 metre freestyle S3 |
| Games: | 2012 Summer |
| Venue: | London Aquatics Centre |
| Dates: | 3 September |
| Competitors: | 11 |
| Nations: | 6 |
| Gold: | Xia Jiangbo |
| Goldnpc: | CHN |
| Silver: | Olga Sviderska |
| Silvernpc: | UKR |
| Bronze: | Patricia Valle |
| Bronzenpc: | MEX |
The women's 100 metre freestyle S3 event at the 2012 Paralympic Games took place on 3 September, at the London Aquatics Centre.
Two heats were held, one with five swimmers and one with six competitors. The swimmers with the eight fastest times advanced to the final.[1]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 2 | 4 | Olga Sviderska | 1:45.34 | Q, WR | ||
| 2 | 1 | 4 | Xia Jiangbo | 1:49.01 | Q | ||
| 3 | 2 | 5 | Patricia Valle | 2:07.22 | Q | ||
| 4 | 1 | 5 | Yip Pin Xiu | 2:09.74 | Q | ||
| 5 | 2 | 3 | Semicha Rizaoglou | 2:17.82 | Q | ||
| 6 | 1 | 3 | Annke Conradi | 2:24.12 | Q | ||
| 7 | 2 | 2 | Haideé Aceves | 2:28.16 | Q | ||
| 8 | 1 | 6 | Iryna Sotska | 2:30.85 | Q | ||
| 9 | 1 | 2 | Vera Thamm | 2:34.63 | |||
| 10 | 2 | 6 | Ganna Ielisavetska | 2:37.85 | |||
| 11 | 2 | 7 | Maria Kalpakidou | 2:54.88 |
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 5 | Xia Jiangbo | 1:44.32 | ||||
| 4 | Olga Sviderska | 1:52.91 | ||||
| 3 | Patricia Valle | 1:59.76 | ||||
| 4 | 6 | Yip Pin Xiu | 2:09.41 | |||
| 5 | 2 | Semicha Rizaoglou | 2:19.92 | |||
| 6 | 7 | Annke Conradi | 2:21.92 | |||
| 7 | 1 | Haideé Aceves | 2:28.96 | |||
| 8 | 8 | Iryna Sotska | 2:35.66 |