The men's discus throw event at the 1992 World Junior Championships in Athletics was held in Seoul, Korea, at Olympic Stadium on 16 and 17 September. A 2 kg (senior implement) discus was used.
| Gold | Brian Milne | |
| Silver | Frits Potgieter | |
| Bronze | Marek Bílek |
17 September
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 57.68 | 58.28 | 58.16 | x | 53.76 | x | 58.28 | ||||
| align=left | align=left | 53.58 | 53.40 | 53.66 | 56.28 | 54.18 | x | 56.28 | |||||
| align=left | align=left | 52.88 | 52.42 | 54.60 | 53.30 | 54.86 | x | 54.86 | |||||
| 4 | align=left | align=left | 53.26 | 52.96 | 51.28 | x | 51.88 | 54.74 | 54.74 | ||||
| 5 | align=left | align=left | 50.82 | 53.04 | 54.06 | 53.82 | x | x | 54.06 | ||||
| 6 | align=left | align=left | | 50.96 | 52.26 | 44.06 | 50.86 | 50.48 | 51.98 | 52.26 | |||
| 7 | align=left | align=left | x | 47.24 | 51.28 | 51.54 | x | x | 51.54 | ||||
| 8 | align=left | align=left |  | 51.52 | x | 49.24 | 51.08 | x | x | 51.52 | |||
| 9 | align=left | align=left | 49.58 | 47.62 | 51.04 | 51.04 | |||||||
| 10 | align=left | align=left |  | x | 47.86 | 50.70 | 50.70 | ||||||
| 11 | align=left | align=left | 48.84 | 50.42 | 49.84 | 50.42 | |||||||
| 12 | align=left | align=left |  | 45.04 | 49.76 | 45.60 | 49.76 | ||||||
16 Sep
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 56.34 | - | - | 56.34 | Q | ||
| 2 | align=left | align=left | 52.90 | - | - | 52.90 | Q | |||
| 3 | align=left | align=left | 51.12 | - | - | 51.12 | Q | |||
| 4 | align=left | align=left | 47.48 | 49.02 | 50.72 | 50.72 | q | |||
| 5 | align=left | align=left | 47.22 | 50.10 | 49.70 | 50.10 | q | |||
| 6 | align=left | align=left | | 49.52 | x | x | 49.52 | q | ||
| 7 | align=left | align=left |  | x | 48.28 | 49.48 | 49.48 | |||
| 8 | align=left | align=left |  | x | 48.94 | 48.38 | 48.94 | |||
| 9 | align=left | align=left | 48.56 | 48.78 | x | 48.78 | ||||
| 10 | align=left | align=left | 40.22 | 38.90 | x | 40.22 | ||||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | 53.60 | - | - | 53.60 | Q | |||
| 2 | align=left | align=left | 49.88 | 49.20 | 52.58 | 52.58 | Q | |||
| 3 | align=left | align=left | 50.68 | 52.08 | - | 52.08 | Q | |||
| 4 | align=left | align=left | | 48.86 | 49.24 | 51.84 | 51.84 | Q | ||
| 5 | align=left | align=left | | 50.00 | x | x | 50.00 | q | ||
| 6 | align=left | align=left | | 48.28 | 49.42 | 49.80 | 49.80 | q | ||
| 7 | align=left | align=left | 44.60 | 49.36 | 48.50 | 49.36 | ||||
| 8 | align=left | align=left |  | 48.50 | 48.78 | 48.38 | 48.78 | |||
| 9 | align=left | align=left |  | 48.32 | 46.86 | 46.30 | 48.32 | |||
| 10 | align=left | align=left | x | 48.24 | x | 48.24 | ||||
| 11 | align=left | align=left |  | 46.20 | x | 45.76 | 46.20 | |||
According to an unofficial count, 21 athletes from 17 countries participated in the event.