| Event: | Men's 400 metre individual medley |
| Games: | 1980 Summer |
| Venue: | Swimming Pool at the Olimpiysky Sports Complex |
| Date: | 27 July |
| Competitors: | 24 |
| Nations: | 15 |
| Win Value: | 4:22.89 |
| Gold: | Aleksandr Sidorenko |
| Goldnoc: | URS |
| Silver: | Sergey Fesenko |
| Silvernoc: | URS |
| Bronze: | Zoltán Verrasztó |
| Bronzenoc: | HUN |
| Prev: | 1976 |
| Next: | 1984 |
The men's 400 metre individual medley event at the 1980 Summer Olympics was held on 27 July at the Swimming Pool at the Olimpiysky Sports Complex.[1]
Prior to this competition, the existing world and Olympic records were as follows.
The following records were established during the competition:
| Rank | Heat | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 1 | 4:25.57 | Q | ||
| 2 | 1 | 4:26.02 | Q | ||
| 3 | 3 | 4:27.00 | Q | ||
| 4 | 4 | 4:28.02 | Q | ||
| 5 | 3 | 4:28.18 | Q | ||
| 6 | 3 | 4:28.66 | Q | ||
| 7 | 2 | 4:28.77 | Q | ||
| 8 | 2 | 4:29.19 | Q | ||
| 9 | 2 | 4:29.43 | |||
| 10 | 4 | 4:29.69 | |||
| 11 | 3 | 4:31.28 | |||
| 12 | 1 | 4:31.69 | |||
| 13 | 4 | 4:33.05 | |||
| 14 | 2 | 4:33.66 | |||
| 15 | 3 | 4:34.01 | |||
| 16 | 2 | 4:34.28 | |||
| 17 | 4 | 4:35.21 | |||
| 18 | 3 | 4:36.99 | |||
| 19 | 3 | 4:37.58 | |||
| 20 | 1 | 4:39.44 | |||
| 21 | 2 | 4:41.32 | |||
| 22 | 1 | 4:41.74 | |||
| 23 | 1 | 4:42.49 | |||
| 4 | DSQ | ||||
| 2 | DNS | ||||
| 4 | |||||
| 4 |
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 4:22.89 | OR | ||||
| 4:23.43 | |||||
| 4:24.24 | |||||
| 4 | 4:24.48 | ||||
| 5 | 4:26.81 | ||||
| 6 | 4:26.99 | ||||
| 7 | 4:28.89 | ||||
| 8 | 4:29.86 |