Swimming at the 2008 Summer Olympics – Men's 100 metre butterfly Semifinal 2 Semifinal 2

| Rank_ | Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 1 | 4 | Milorad Čavić Category:Articles with hCards | Serbia | 50.92 |
| 2 | 1 | Ian Crocker Category:Articles with hCards | United States | 51.27 |
| 3 | 5 | Andriy Serdinov Category:Articles with hCards | Ukraine | 51.41 |
| 4 | 6 | Takuro Fujii Category:Articles with hCards | Japan | 51.59 |
| 5 | 3 | Peter Mankoč Category:Articles with hCards | Slovenia | 51.80 |
| 6 | 2 | Corney Swanepoel Category:Articles with hCards | New Zealand | 52.01 |
| 7 | 8 | Lyndon Ferns Category:Articles with hCards | South Africa | 52.18 |
| 8 | 7 | Frédérick Bousquet Category:Articles with hCards | France | 52.94 |