Swimming at the 2004 Summer Paralympics – Men's 100 metre freestyle S5
The Men's 100 metre freestyle S5 swimming event at the 2004 Summer Paralympics was competed on 19 September. It was won by Sebastián Rodríguez, representing.;Heat 1
19 Sept. 2004, morning session
| Rank | Athlete | Time | Notes |
| 1 | | 1:15.66 | PR |
| 2 | | 1:19.98 | |
| 3 | | 1:24.77 | |
| 4 | | 1:30.04 | |
| 5 | | 1:34.25 | |
;Heat 2
19 Sept. 2004, morning session
| Rank | Athlete | Time | Notes |
| 1 | | 1:19.21 | |
| 2 | | 1:20.78 | |
| 3 | | 1:28.82 | |
| 4 | | 1:29.21 | |
| 5 | | 1:31.20 | |
| 6 | | 1:41.14 | |
19 Sept. 2004, evening session
| Rank | Athlete | Time | Notes |
| | 1:13.39 | WR |
| | 1:16.29 | |
| | 1:17.62 | |
| 4 | | 1:19.12 | |
| 5 | | 1:19.43 | |
| 6 | | 1:28.71 | |
| 7 | | 1:29.99 | |
| 8 | | 1:31.52 | |
