The men's discus throw at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 12 July.[1]
| Gold | Fedrick Dacres Jamaica | |
| Silver | Wojciech Praczyk Poland | |
| Bronze | Gerhard de Beer South Africa |
, the existing world junior and championship records were as follows.
| World Junior Record | 70.13 m | Halle, Germany | 24 May 2008 | ||
| Championship Record | 67.32 m | Beijing, China | 16 August 2006 | ||
| World Junior Leading | 64.22 m | Bialystok, Poland | 24 June 2012 |
Qualification: Standard 59.40 m (Q) or at least best 12 qualified (q)
| Rank | Group | Name | Nationality |
|
|
| Result | Note | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A | 59.32 | 60.72 | 60.72 | Q | ||||
| 2 | A | 59.84 | 59.84 | Q, | |||||
| 3 | B | 51.53 | 59.54 | 59.54 | Q | ||||
| 4 | B | X | 56.74 | 59.01 | 59.01 | q | |||
| 5 | B | 58.98 | 58.55 | X | 58.98 | q | |||
| 6 | A | 13.31 | 57.48 | 58.90 | 58.90 | q | |||
| 7 | A | 58.23 | X | 57.56 | 58.23 | q | |||
| 8 | B | 56.48 | 55.48 | 57.65 | 57.65 | q, | |||
| 9 | A | 47.51 | 56.00 | 57.60 | 57.60 | q, | |||
| 10 | B | 56.89 | 51.67 | 53.32 | 56.89 | q | |||
| 11 | A | X | 53.84 | 56.85 | 56.85 | q | |||
| 12 | A | X | 56.78 | X | 56.78 | q | |||
| 13 | A | 55.68 | 52.65 | 56.51 | 56.51 | ||||
| 14 | B | 56.25 | 53.61 | 52.91 | 56.25 | ||||
| 15 | A | 53.60 | 55.59 | 54.31 | 55.59 | ||||
| 16 | A | 51.88 | 54.59 | 55.25 | 55.25 | ||||
| 17 | B | 54.72 | 52.46 | 53.49 | 54.72 | ||||
| 18 | A | 54.66 | X | 53.03 | 54.66 | ||||
| 19 | B | 53.87 | 54.50 | 54.31 | 54.50 | ||||
| 20 | B | X | 53.49 | 54.42 | 54.42 | ||||
| 21 | A | 52.71 | X | X | 52.71 | ||||
| 22 | A | 51.71 | 51.37 | X | 51.71 | ||||
| 23 | A | X | X | 49.39 | 49.39 | ||||
| 24 | B | 53.41 | 53.10 | 49.60 | 53.41 | ||||
| 25 | B | 53.24 | 51.74 | X | 53.24 | ||||
| 26 | B | 50.64 | X | 52.48 | 52.48 | ||||
| 27 | B | X | 51.98 | 50.61 | 51.98 | ||||
| – | B | X | X | NM |
| Rank | Name | Nationality |
|
|
|
|
|
| Result | Note | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 60.46 | 62.80 | X | 61.20 | X | 61.29 | 62.80 | |||||
| 62.66 | X | X | X | 59.61 | 62.75 | 62.75 | |||||
| 56.56 | 60.13 | 61.25 | 61.57 | X | X | 61.57 | |||||
| 4 | 58.96 | 59.96 | X | 59.12 | 59.04 | 61.48 | 61.48 | ||||
| 5 | X | X | 61.18 | 57.39 | X | X | 61.18 | ||||
| 6 | 57.45 | X | 57.68 | 60.44 | 59.89 | X | 60.44 | ||||
| 7 | 58.75 | 57.55 | X | X | X | 59.31 | 59.31 | ||||
| 8 | 56.47 | 54.83 | 57.79 | X | X | 56.98 | 57.79 | ||||
| 9 | 51.29 | 57.41 | 57.50 | 57.50 | |||||||
| 10 | X | 56.71 | 56.77 | 56.77 | |||||||
| 11 | 54.56 | X | 52.75 | 54.56 | |||||||
| X | X | X | NM |
According to an unofficial count, 28 athletes from 22 countries participated in the event.