| Event: | Men's 400 metre individual medley |
| Championship: | Swimming at the 2024 World Aquatics Championships |
| Dates: | 18 February (heats and final) |
| Venue: | Aspire Dome |
| Location: | Doha, Qatar |
| Competitors: | 26 |
| Nations: | 24 |
| Win Value: | 4:09.72 |
| Gold: | Lewis Clareburt |
| Gold Nation: | NZL |
| Silver: | Max Litchfield |
| Silver Nation: | GBR |
| Bronze: | Daiya Seto |
| Bronze Nation: | JPN |
| Prev: | 2023 |
| Next: | 2025 |
The Men's 400 metre individual medley competition at the 2024 World Aquatics Championships was held on 18 February 2024.[1] [2]
Prior to the competition, the existing world and championship records were as follows.[3]
The heats were held at 09:32.[4]
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | 2 | 1 | 4:12.51 | Q | ||
| 2 | 2 | 3 | 4:12.54 | Q | ||
| 3 | 2 | 4 | 4:13.06 | Q | ||
| 4 | 3 | 4 | 4:13.24 | Q | ||
| 5 | 3 | 3 | 4:13.61 | Q | ||
| 6 | 3 | 6 | 4:13.93 | Q | ||
| 7 | 2 | 6 | 4:14.54 | Q | ||
| 8 | 3 | 5 | 4:15.84 | Q | ||
| 9 | 3 | 9 | 4:18.43 | NR | ||
| 10 | 3 | 1 | 4:18.74 | |||
| 11 | 2 | 0 | 4:19.24 | |||
| 12 | 3 | 7 | 4:19.86 | |||
| 13 | 3 | 8 | 4:20.76 | |||
| 14 | 2 | 8 | 4:20.93 | |||
| 15 | 1 | 6 | 4:23.64 | |||
| 16 | 1 | 5 | 4:23.66 | |||
| 17 | 3 | 2 | 4:25.04 | |||
| 18 | 1 | 3 | 4:25.16 | |||
| 19 | 1 | 4 | 4:25.34 | |||
| 20 | 2 | 9 | 4:28.72 | |||
| 21 | 3 | 0 | 4:39.53 | |||
| 22 | 1 | 7 | 4:42.64 | |||
| 23 | 1 | 1 | 4:54.79 | |||
| – | 2 | 5 | Did not start | |||
| 1 | 2 | Disqualified | ||||
| 2 | 2 | |||||
| 2 | 7 | |||||
The final was held at 20:01.[5]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 2 | 4:09.72 | |||||
| 5 | 4:10.40 | |||||
| 3 | 4:12.51 | |||||
| 4 | 6 | 4:12.62 | ||||
| 5 | 4 | 4:13.05 | ||||
| 5 | 8 | 4:13.05 | ||||
| 7 | 1 | 4:14.98 | ||||
| 8 | 7 | 4:19.66 |