1983 World Championships in Athletics – Men's 400 metres
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Events at the 1983 World Championships 
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|---|---|---|---|---|
| Track events | ||||
| 100 m | men | women | ||
| 200 m | men | women | ||
| 400 m | men | women | ||
| 800 m | men | women | ||
| 1500 m | men | women | ||
| 3000 m | women | |||
| 5000 m | men | |||
| 10,000 m | men | |||
| 100 m hurdles | women | |||
| 110 m hurdles | men | |||
| 400 m hurdles | men | women | ||
| 3000 m steeplechase |
men | |||
| 4×100 m relay | men | women | ||
| 4×400 m relay | men | women | ||
| Road events | ||||
| Marathon | men | women | ||
| 20 km walk | men | |||
| 50 km walk | men | |||
| Field events | ||||
| Long jump | men | women | ||
| Triple jump | men | |||
| High jump | men | women | ||
| Pole vault | men | |||
| Shot put | men | women | ||
| Discus throw | men | women | ||
| Javelin throw | men | women | ||
| Hammer throw | men | |||
| Combined events | ||||
| Heptathlon | women | |||
| Decathlon | men | |||
These are the official results of the men's 400 metres event at the 1983 IAAF World Championships in Helsinki, Finland. There were a total number of 55 participating athletes, with seven qualifying heats and the final held on 10 August 1983.
Existing records at the start of the event.
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