The men's javelin throw event at the 2009 European Athletics U23 Championships was held in Kaunas, Lithuania, at S. Dariaus ir S. Girėno stadionas (Darius and Girėnas Stadium) on 16 and 18 July.
| Gold | Ari Mannio | |
| Silver | Petr Frydrych | |
| Bronze | Spiridon Lebesis |
18 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 80.47 | 79.52 | 77.78 | x | 80.33 | 84.57 | 84.57 | CR | |||
| align=left | align=left | | 75.33 | 80.10 | 73.78 | 77.05 | x | 80.53 | 80.53 | ||||
| align=left | align=left | 75.74 | x | 79.03 | 79.37 | 79.36 | 78.69 | 79.37 | |||||
| 4 | align=left | align=left |  | 76.57 | 78.46 | 75.33 | 75.32 | 75.40 | x | 78.46 | |||
| 5 | align=left | align=left |  | 74.32 | 74.98 | 77.84 | 75.85 | x | 70.95 | 77.84 | |||
| 6 | align=left | align=left | 76.11 | x | x | 71.77 | 72.01 | 72.89 | 76.11 | ||||
| 7 | align=left | align=left |  | x | 75.50 | x | 75.12 | 75.27 | x | 75.50 | |||
| 8 | align=left | align=left | 75.40 | x | 74.96 | x | x | x | 75.40 | ||||
| 9 | align=left | align=left | | 71.56 | 75.02 | 75.21 | 75.21 | ||||||
| 10 | align=left | align=left |  | x | 73.71 | 70.30 | 73.71 | ||||||
| 11 | align=left | align=left | 73.30 | x | 71.75 | 73.30 | |||||||
| 12 | align=left | align=left | | 72.05 | 73.16 | 73.08 | 73.16 | ||||||
16 July
Qualifying 76.00 or 12 best to the Final
| Rank | Name | Nationality | Result | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 76.80 | Q | ||
| 2 | align=left | align=left | 75.93 | q | |||
| 3 | align=left | align=left | | 74.76 | q | ||
| 4 | align=left | align=left | 73.34 | q | |||
| 5 | align=left | align=left | 72.77 | q | |||
| 6 | align=left | align=left | | 72.59 | q | ||
| 7 | align=left | align=left |  | 72.57 | |||
| 8 | align=left | align=left |  | 72.00 | |||
| 9 | align=left | align=left |  | 71.07 | |||
| 10 | align=left | align=left |  | 70.56 | |||
| 11 | align=left | align=left | | 70.38 | |||
| 12 | align=left | align=left |  | 67.80 | |||
| 13 | align=left | align=left |  | 67.08 | |||
| 14 | align=left | align=left | 65.98 | ||||
| 15 | align=left | align=left | 63.55 |
| Rank | Name | Nationality | Result | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 77.56 | Q | ||
| 2 | align=left | align=left | | 77.03 | Q | ||
| 3 | align=left | align=left | | 75.80 | q | ||
| 4 | align=left | align=left | | 75.40 | q | ||
| 5 | align=left | align=left | | 74.67 | q | ||
| 6 | align=left | align=left | 73.66 | q | |||
| 7 | align=left | align=left |  | 72.11 | |||
| 8 | align=left | align=left | | 71.38 | |||
| 9 | align=left | align=left |  | 70.84 | |||
| 10 | align=left | align=left | | 68.35 | |||
| 11 | align=left | align=left | 64.75 | ||||
| 12 | align=left | align=left |  | 64.35 | |||
| 13 | align=left | align=left | 63.11 | ||||
| 14 | align=left | align=left | | 62.45 | |||
| 15 | align=left | align=left | | 61.71 |
According to an unofficial count, 30 athletes from 19 countries participated in the event.
(1) (1) (1) (3) (3) (1) (1) (1) (1) (3) (1) (1) (2) (1) (1)