| Event: | Men's 400 metres |
| Competition: | European Athletics Championships |
These are the official results of the Men's 400 metres event at the 1990 European Championships in Split, Yugoslavia, held at Stadion Poljud on 28, 29, and 30 August 1990.
| Gold | Roger Black | |
| Silver | Thomas Schönlebe | |
| Bronze | Jens Carlowitz |
30 August
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| align=left | align=left | 45.08 | |||||
| align=left | align=left | 45.13 | |||||
| align=left | align=left | 45.27 | |||||
| 4 | align=left | align=left |  | 45.30 | |||
| 5 | align=left | align=left | 45.42 | ||||
| 6 | align=left | align=left | 45.49 | ||||
| 7 | align=left | align=left | 46.19 | ||||
| 8 | align=left | align=left |  | 46.25 |
29 August
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 45.46 | Q | |||
| 2 | align=left | align=left | 45.66 | Q | |||
| 3 | align=left | align=left | 45.67 | Q | |||
| 4 | align=left | align=left | | 45.80 | Q | ||
| 5 | align=left | align=left | 46.06 | ||||
| 6 | align=left | align=left |  | 46.07 | |||
| 7 | align=left | align=left |  | 46.11 | |||
| align=left | align=left | DNS |
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 45.00 | Q | ||
| 2 | align=left | align=left | 45.15 | Q | |||
| 3 | align=left | align=left | 45.15 | Q | |||
| 4 | align=left | align=left | 45.30 | Q | |||
| 5 | align=left | align=left | 46.07 | ||||
| 6 | align=left | align=left | 46.22 | ||||
| 7 | align=left | align=left | 46.98 | ||||
| 8 | align=left | align=left | | 47.39 |
28 August
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 45.53 | Q | |||
| 2 | align=left | align=left | 45.77 | Q | |||
| 3 | align=left | align=left | | 45.92 | Q | ||
| 4 | align=left | align=left | 45.98 | Q | |||
| 5 | align=left | align=left | 46.15 | q | |||
| 6 | align=left | align=left | | 46.54 | q | ||
| 7 | align=left | align=left | 46.56 | q | |||
| 8 | align=left | align=left | | 46.99 |
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 45.71 | Q | |||
| 2 | align=left | align=left | 46.10 | Q | |||
| 3 | align=left | align=left | | 46.14 | Q | ||
| 4 | align=left | align=left | 46.74 | Q | |||
| 5 | align=left | align=left | 46.79 | q | |||
| 6 | align=left | align=left | | 46.90 | |||
| 7 | align=left | align=left |  | 47.16 | |||
| 8 | align=left | align=left | 47.46 |
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 46.07 | Q | ||
| 2 | align=left | align=left | 46.42 | Q | |||
| 3 | align=left | align=left | | 46.61 | Q | ||
| 4 | align=left | align=left | 46.75 | Q | |||
| 5 | align=left | align=left |  | 46.80 | |||
| 6 | align=left | align=left | 46.85 | ||||
| align=left | align=left |
According to an unofficial count, 22 athletes from 11 countries participated in the event.
(1) (1) (1) (2) (1) (3)