The men's discus throw event at the 2016 IAAF World U20 Championships was held in Bydgoszcz, Poland, at Zdzisław Krzyszkowiak Stadium on 24 July. A 1.75 kg (junior implement) discus was used.
| Gold | Mohamed Ibrahim Moaaz | |
| Silver | Oskar Stachnik | |
| Bronze | Hleb Zhuk |
24 July
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||||||
| align=left | align=left | | 63.63 | x | x | x | 63.63 | NU20R | ||
| align=left | align=left | | 55.80 | 60.06 | 62.83 | 61.34 | 62.83 | PB | ||
| align=left | align=left | | 60.44 | 61.70 | 61.07 | x | 61.70 | PB | ||
| align=left | align=left |  | 61.23 | x | x | 59.55 | 61.23 | PB | ||
| align=left | align=left | | x | x | DQ[1] | |||||
| align=left | align=left | x | 55.98 | 59.10 | x | 59.10 | ||||
| align=left | align=left |  | x | 55.36 | 58.81 | 58.81 | ||||
| align=left | align=left |  | 56.07 | 58.50 | 56.93 | 58.50 | PB | |||
| align=left | align=left | 57.42 | x | 58.16 | 58.16 | |||||
| align=left | align=left |  | x | x | 57.87 | 57.87 | ||||
| 10 | align=left | align=left |  | 57.85 | x | x | 57.85 | |||
| align=left | align=left |  | x | x | x | |||||
24 July
With qualifying standard of 59.00 (Q) or at least the 12 best performers (q) advance to the Final
| Rank | Name | Nationality | Result | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 62.79 | Q PB | ||
| 2 | align=left | align=left | 62.16 | Q | |||
| 3 | align=left | align=left | 61.41 | Q | |||
| align=left | align=left | | DQ | ||||
| 4 | align=left | align=left | | 59.48 | Q PB | ||
| 5 | align=left | align=left | | 59.25 | Q | ||
| 6 | align=left | align=left | | 59.24 | Q PB | ||
| 7 | align=left | align=left | | 59.19 | Q | ||
| 8 | align=left | align=left | | 58.04 | q | ||
| 9 | align=left | align=left | | 57.98 | q PB | ||
| 10 | align=left | align=left | | 57.88 | q | ||
| 11 | align=left | align=left | | 57.62 | q | ||
| 12 | align=left | align=left |  | 57.49 | PB | ||
| 13 | align=left | align=left | 57.15 | NU20R | |||
| 14 | align=left | align=left | | 57.14 | |||
| 15 | align=left | align=left | 57.04 | ||||
| 16 | align=left | align=left | 56.37 | NU20R | |||
| 17 | align=left | align=left |  | 56.33 | |||
| 18 | align=left | align=left |  | 56.23 | |||
| 19 | align=left | align=left | | 55.93 | |||
| 20 | align=left | align=left | | 55.87 | |||
| 21 | align=left | align=left |  | 55.82 | |||
| 22 | align=left | align=left |  | 55.78 | |||
| 23 | align=left | align=left |  | 55.60 | |||
| 24 | align=left | align=left | | 54.57 | |||
| 25 | align=left | align=left |  | 54.53 | |||
| 26 | align=left | align=left |  | 54.50 | |||
| 27 | align=left | align=left | | 54.39 | |||
| 28 | align=left | align=left |  | 54.36 | |||
| 29 | align=left | align=left | | 54.34 | |||
| 30 | align=left | align=left | 53.24 | ||||
| 31 | align=left | align=left | | 53.19 | |||
| 32 | align=left | align=left |  | 53.19 | |||
| 33 | align=left | align=left | | 53.12 | |||
| 34 | align=left | align=left |  | 52.90 | |||
| 35 | align=left | align=left |  | 52.09 | |||
| 36 | align=left | align=left | 52.07 | ||||
| 37 | align=left | align=left | | 51.70 | |||
| 38 | align=left | align=left | 49.27 | ||||
| 39 | align=left | align=left |  | 48.95 | |||
| 40 | align=left | align=left | | 48.86 | |||
| 41 | align=left | align=left | 45.38 | ||||
| 42 | align=left | align=left |  | 38.51 | NU20R | ||
| align=left | align=left | ||||||
| align=left | align=left |  |