Swimming at the 2008 Summer Olympics – Men's 4 × 100 metre medley relay Heats Heats

| Rank_ | Heat | Lane | Nationality | Time_ |
|---|---|---|---|---|
| 1 | 2 | 4 | United States | 3:32.75 |
| 2 | 1 | 4 | Australia | 3:32.76 |
| 3 | 1 | 5 | Japan | 3:32.81 |
| 4 | 2 | 3 | Russia | 3:33.59 |
| 5 | 1 | 6 | Great Britain | 3:33.83 |
| 6 | 2 | 8 | New Zealand | 3:34.09 |
| 7 | 2 | 6 | South Africa | 3:34.16 |
| 8 | 2 | 7 | Italy | 3:34.32 |
| 9 | 2 | 1 | France | 3:34.78 |
| 10 | 2 | 5 | Canada | 3:35.56 |
| 11 | 1 | 2 | Sweden | 3:35.83 |
| 12 | 2 | 2 | Croatia | 3:37.69 |
| 13 | 1 | 1 | Romania | 3:38.00 |
| 14 | 1 | 3 | Brazil | 3:38.66 |
| 15 | 1 | 7 | Ukraine | 3:38.76 |
| 16 | 1 | 8 | Belarus | 3:39.39 |