Swimming at the 1973 World Aquatics Championships – Men's 400 metre individual medley
The men's 400 metre individual medley competition of the swimming events at the 1973 World Aquatics Championships took place on September 5.Records
Prior to the competition, the existing world and championship records were as follows.
The following records were established during the competition:
| Date | Event | Name | Nationality | Time | Record |
| 5 September | Heat 1 | András Hargitay | | 4:38.96 | CR |
| 5 September | Heat 4 | Rick Colella | | 4:38.50 | CR |
| 5 September | Final | András Hargitay | | 4:31.11 | CR |
Results
Heats
29 swimmers participated in 4 heats, qualified swimmers are listed:Final
The results of the final are below.
