The men's 110 metres hurdles event at the 2003 European Athletics U23 Championships was held in Bydgoszcz, Poland, at Zawisza Stadion on 18 and 20 July.
| Gold | Ladji Doucouré | |
| Silver | Philip Nossmy | |
| Bronze | Gregory Sedoc |
20 July
Wind: 0.6 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| align=left | align=left | | 13.25 | ||||
| align=left | align=left | | 13.50 | ||||
| align=left | align=left | 13.55 | |||||
| 4 | align=left | align=left | 13.60 | ||||
| 5 | align=left | align=left |  | 13.61 | |||
| 6 | align=left | align=left |  | 13.63 | |||
| 7 | align=left | align=left | | 13.70 | |||
| 8 | align=left | align=left | 13.80 |
20 July
Qualified: first 4 in each to the Final
Wind: 1.9 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.23 | Q, CR | ||
| 2 | align=left | align=left | 13.54 | Q | |||
| 3 | align=left | align=left | 13.60 | Q | |||
| 4 | align=left | align=left | | 13.72 | Q | ||
| 5 | align=left | align=left | 13.77 | ||||
| 6 | align=left | align=left |  | 13.89 | |||
| 7 | align=left | align=left |  | 13.92 | |||
| 8 | align=left | align=left | 14.02 |
Wind: 0.6 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 13.58 | Q | |||
| 2 | align=left | align=left | | 13.60 | Q | ||
| 3 | align=left | align=left | | 13.64 | Q | ||
| 4 | align=left | align=left | | 13.71 | Q | ||
| 5 | align=left | align=left |  | 13.75 | |||
| 6 | align=left | align=left |  | 13.94 | |||
| 7 | align=left | align=left |  | 13.99 | |||
| align=left | align=left |  | DQ |
18 July
Qualified: first 3 in each heat and 4 best to the Semifinal
Wind: 2.9 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.59 w | Q | ||
| 2 | align=left | align=left | 13.59 w | Q | |||
| 3 | align=left | align=left | | 13.59 w | Q | ||
| 4 | align=left | align=left | | 13.78 w | q | ||
| 5 | align=left | align=left | | 13.80 w | q | ||
| 6 | align=left | align=left | | 14.02 w | |||
| 7 | align=left | align=left | | 14.25 w | |||
| 8 | align=left | align=left |  | 14.56 w |
Wind: 0.5 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.70 | Q | ||
| 2 | align=left | align=left | 13.79 | Q | |||
| 3 | align=left | align=left | | 13.93 | Q | ||
| 4 | align=left | align=left | | 14.06 | |||
| 5 | align=left | align=left |  | 14.16 | |||
| 6 | align=left | align=left | | 14.23 | |||
| 7 | align=left | align=left | | 14.29 | |||
| 8 | align=left | align=left |  | 14.33 |
Wind: 0.8 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 13.61 | Q | |||
| 2 | align=left | align=left | | 13.90 | Q | ||
| 3 | align=left | align=left | | 13.98 | Q | ||
| 4 | align=left | align=left | | 14.21 | |||
| 5 | align=left | align=left | 14.22 | ||||
| 6 | align=left | align=left |  | 14.60 | |||
| align=left | align=left |  | DNS |
Wind: -0.4 m/s
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 13.55 | Q | ||
| 2 | align=left | align=left | 13.78 | Q | |||
| 3 | align=left | align=left | 13.87 | Q | |||
| 4 | align=left | align=left | | 13.95 | q | ||
| 5 | align=left | align=left | | 14.00 | q | ||
| 6 | align=left | align=left | | 14.08 | |||
| 7 | align=left | align=left |  | 14.24 | |||
| 8 | align=left | align=left | 14.43 |
According to an unofficial count, 30 athletes from 20 countries participated in the event.
(1) (1) (1) (2) (2) (3) (1) (2) (1) (2) (2) (1) (2) (1) (1)