The women's discus throw event at the 2000 World Junior Championships in Athletics was held in Santiago, Chile, at Estadio Nacional Julio Martínez Prádanos on 18 and 19 October.
| Gold | Xu Shaoyang | |
| Silver | Jana Tucholke | |
| Bronze | Olga Goncharenko |
19 October
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 52.98 | 48.73 | 50.48 | 52.67 | 51.98 | 54.41 | 54.41 | ||||
| align=left | align=left | x | 44.79 | 50.18 | 49.72 | 53.97 | 53.10 | 53.97 | |||||
| align=left | align=left | | x | x | 49.32 | 53.04 | x | 53.64 | 53.64 | ||||
| 4 | align=left | align=left | 51.69 | 52.09 | 48.42 | 51.11 | x | 53.06 | 53.06 | ||||
| 5 | align=left | align=left | 50.32 | 50.57 | x | 50.75 | 52.28 | 52.10 | 52.28 | ||||
| 6 | align=left | align=left |  | 51.44 | 50.06 | 50.28 | 50.52 | 50.98 | 50.26 | 51.44 | |||
| 7 | align=left | align=left | 43.82 | 50.18 | 46.86 | x | x | 46.35 | 50.18 | ||||
| 8 | align=left | align=left |  | 46.05 | 47.88 | 41.32 | 47.88 | ||||||
| 9 | align=left | align=left |  | x | 47.34 | x | 47.34 | ||||||
| 10 | align=left | align=left |  | 43.77 | 47.30 | x | 47.30 | ||||||
| 11 | align=left | align=left |  | 46.12 | x | 46.42 | 46.42 | ||||||
| align=left | align=left |  | 52.52 | 51.15 | 53.28 | x | 54.14 | 55.27 | DQ | IAAF rule 32.2 | |||
18 October
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | |||||||||
| 1 | align=left | align=left | 50.46 | x | 50.32 | 50.46 | q | ||||
| 2 | align=left | align=left | | 49.99 | 44.36 | 50.13 | 50.13 | q | |||
| 3 | align=left | align=left | | 43.05 | x | 50.05 | 50.05 | q | |||
| 4 | align=left | align=left | | 49.04 | 47.76 | 45.72 | 49.04 | q | |||
| 5 | align=left | align=left | 47.98 | 45.13 | 47.60 | 47.98 | |||||
| 6 | align=left | align=left | 47.30 | x | 43.74 | 47.30 | |||||
| 7 | align=left | align=left | 43.33 | 47.27 | 44.37 | 47.27 | |||||
| 8 | align=left | align=left |  | 46.88 | 46.26 | 44.88 | 46.88 | ||||
| 9 | align=left | align=left |  | 45.89 | 46.09 | 45.97 | 46.09 | ||||
| 10 | align=left | align=left |  | 45.12 | 45.96 | 45.74 | 45.96 | ||||
| 11 | align=left | align=left |  | 43.42 | 43.88 | x | 43.88 | ||||
| align=left | align=left | | 50.65 | 54.83 | - | bgcolor=pink | DQ | IAAF rule 32.2 Q | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | x | 53.26 | - | 53.26 | Q | ||
| 2 | align=left | align=left | 50.62 | 52.90 | - | 52.90 | Q | |||
| 3 | align=left | align=left | 51.64 | - | - | 51.64 | Q | |||
| 4 | align=left | align=left | | 50.08 | 50.55 | 51.10 | 51.10 | Q | ||
| 5 | align=left | align=left | | x | 44.90 | 48.95 | 48.95 | q | ||
| 6 | align=left | align=left | | 45.46 | 48.55 | 45.99 | 48.55 | q | ||
| 7 | align=left | align=left | 48.18 | 47.41 | 48.21 | 48.21 | q | |||
| 8 | align=left | align=left |  | x | 44.96 | 43.68 | 44.96 | |||
| 9 | align=left | align=left | 41.53 | x | x | 41.53 | ||||
| 10 | align=left | align=left | | x | 41.12 | x | 41.12 | |||
| 11 | align=left | align=left | | 40.04 | x | x | 40.04 | |||
| 12 | align=left | align=left | x | 39.29 | x | 39.29 | ||||
According to an unofficial count, 24 athletes from 19 countries participated in the event.