| Event: | Men's 400 metre freestyle |
| Competition: | 2022 FINA World Swimming Championships (25 m) |
| Venue: | Melbourne Sports and Aquatic Centre |
| Location: | Melbourne, Australia |
| Dates: | 15 December (heats and final) |
| Competitors: | 34 |
| Nations: | 30 |
| Win Value: | 3:34.38 |
| Gold: | Kieran Smith |
| Goldnoc: | USA |
| Silver: | Thomas Neill |
| Silvernoc: | AUS |
| Bronze: | Danas Rapšys |
| Bronzenoc: | LTU |
| Prev: | 2021 |
| Next: | 2024 |
The Men's 400 metre freestyle competition of the 2022 FINA World Swimming Championships (25 m) was held on 15 December 2022.[1]
Prior to the competition, the existing world and championship records were as follows.
The heats were started at 12:25.[2]
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | 5 | 4 | 3:36.91 | Q | ||
| 2 | 5 | 3 | 3:37.73 | Q | ||
| 3 | 4 | 2 | 3:37.96 | Q | ||
| 4 | 4 | 3 | 3:38.09 | Q | ||
| 5 | 4 | 6 | 3:38.23 | Q | ||
| 6 | 4 | 5 | 3:38.57 | Q | ||
| 7 | 4 | 4 | 3:38.71 | Q | ||
| 8 | 5 | 6 | 3:38.74 | Q | ||
| 9 | 3 | 6 | 3:38.86 | |||
| 10 | 5 | 1 | 3:39.79 | |||
| 11 | 5 | 7 | 3:39.84 | |||
| 12 | 5 | 5 | 3:41.05 | |||
| 13 | 3 | 4 | 3:41.89 | |||
| 14 | 4 | 7 | 3:42.16 | |||
| 15 | 3 | 1 | 3:42.85 | |||
| 16 | 2 | 3 | 3:43.18 | |||
| 17 | 5 | 2 | 3:44.76 | |||
| 18 | 3 | 3 | 3:45.66 | |||
| 19 | 2 | 6 | 3:45.70 | |||
| 20 | 3 | 2 | 3:46.19 | |||
| 21 | 1 | 4 | 3:46.32 | |||
| 22 | 2 | 5 | 3:47.60 | |||
| 23 | 3 | 8 | 3:48.47 | |||
| 24 | 2 | 2 | 3:49.93 | |||
| 25 | 2 | 4 | 3:49.94 | |||
| 26 | 2 | 8 | 3:50.03 | |||
| 27 | 1 | 7 | 3:50.63 | |||
| 28 | 1 | 6 | 3:56.22 | NR | ||
| 29 | 1 | 3 | 3:56.41 | |||
| 30 | 2 | 1 | 3:56.60 | |||
| 31 | 3 | 7 | 3:58.48 | |||
| 32 | 1 | 5 | 4:05.61 | |||
| 33 | 1 | 2 | Suspended Member Federation | 4:08.64 | ||
| 34 | 1 | 1 | 4:17.65 | |||
| 2 | 7 | |||||
| 3 | 5 | |||||
| 4 | 1 | |||||
| 4 | 8 | |||||
| 5 | 8 |
The final was held at 21:31.[3]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 4 | 3:34.38 | AM | ||||
| 2 | 3:35.05 | |||||
| 1 | 3:36.26 | |||||
| 4 | 3 | 3:36.87 | NR | |||
| 5 | 7 | 3:37.86 | ||||
| 6 | 6 | 3:37.94 | ||||
| 7 | 8 | 3:38.12 | ||||
| 8 | 5 | 3:38.98 |