The women's javelin throw event at the 1998 World Junior Championships in Athletics was held in Annecy, France, at Parc des Sports on 28 and 29 July. An old specification 600g javelin was used.
| Gold | Osleidys Menéndez | |
| Silver | Liang Lili | |
| Bronze | Wei Yanan |
29 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 68.17 | 61.98 | 62.61 | x | x | x | 68.17 | ||||
| align=left | align=left | | 61.72 | 55.13 | x | 57.62 | 61.05 | 51.17 | 61.72 | ||||
| align=left | align=left | | x | 58.75 | 56.86 | 55.96 | 59.10 | x | 59.10 | ||||
| 4 | align=left | align=left |  | 58.01 | 58.94 | x | 57.58 | x | 57.79 | 58.94 | |||
| 5 | align=left | align=left |  | x | x | 54.72 | x | x | 52.35 | 54.72 | |||
| 6 | align=left | align=left |  | 54.15 | 54.26 | x | 54.68 | 51.95 | 50.19 | 54.68 | |||
| 7 | align=left | align=left |  | 50.01 | 53.79 | 52.45 | 49.21 | x | 52.25 | 53.79 | |||
| 8 | align=left | align=left |  | 50.37 | 49.38 | 52.59 | 50.87 | 48.17 | x | 52.59 | |||
| 9 | align=left | align=left |  | 46.95 | 48.81 | 51.31 | 51.31 | ||||||
| 10 | align=left | align=left | 50.65 | 50.52 | 49.27 | 50.65 | |||||||
| 11 | align=left | align=left | | 49.93 | 47.87 | 48.45 | 49.93 | ||||||
| 12 | align=left | align=left | 47.91 | 47.70 | 48.37 | 48.37 | |||||||
28 Jul
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 65.93 | - | - | 65.93 | Q | ||
| 2 | align=left | align=left | | 51.42 | x | 53.39 | 53.39 | Q | ||
| 3 | align=left | align=left | | 48.22 | 51.02 | 52.48 | 52.48 | q | ||
| 4 | align=left | align=left | | 49.97 | 51.91 | 47.05 | 51.91 | q | ||
| 5 | align=left | align=left | | 51.75 | 46.50 | 49.42 | 51.75 | q | ||
| 6 | align=left | align=left | 48.63 | 48.27 | 51.74 | 51.74 | q | |||
| 7 | align=left | align=left | 47.93 | 44.66 | 46.55 | 47.93 | ||||
| 8 | align=left | align=left |  | x | 47.68 | x | 47.68 | |||
| 9 | align=left | align=left |  | 45.03 | 44.38 | 46.59 | 46.59 | |||
| 10 | align=left | align=left | | 45.60 | 40.33 | x | 45.60 | |||
| 11 | align=left | align=left | 39.85 | x | 45.54 | 45.54 | ||||
| 12 | align=left | align=left |  | x | 45.45 | 41.60 | 45.45 | |||
| 13 | align=left | align=left |  | 44.80 | x | 40.74 | 44.80 | |||
| 14 | align=left | align=left |  | 43.60 | x | 40.92 | 43.60 | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 56.62 | - | - | 56.62 | Q | ||
| 2 | align=left | align=left | | 55.98 | - | - | 55.98 | Q | ||
| 3 | align=left | align=left | | x | 54.95 | - | 54.95 | Q | ||
| 4 | align=left | align=left | | 51.21 | 52.83 | 46.37 | 52.83 | q | ||
| 5 | align=left | align=left | 52.79 | 52.82 | x | 52.82 | q | |||
| 6 | align=left | align=left | | 48.73 | 50.54 | 50.44 | 50.54 | q | ||
| 7 | align=left | align=left |  | x | 48.82 | x | 48.82 | |||
| 8 | align=left | align=left |  | 46.24 | 48.68 | 48.45 | 48.68 | |||
| 9 | align=left | align=left | 46.58 | x | x | 46.58 | ||||
| 10 | align=left | align=left | x | x | 45.91 | 45.91 | ||||
| 11 | align=left | align=left | x | 45.55 | 44.67 | 45.55 | ||||
| 12 | align=left | align=left | | x | 45.35 | 44.76 | 45.35 | |||
| 13 | align=left | align=left |  | 41.98 | 36.99 | 44.38 | 44.38 | |||
| 14 | align=left | align=left |  | 40.59 | 41.13 | 38.92 | 41.13 | |||
| 15 | align=left | align=left | 37.09 | x | x | 37.09 | ||||
According to an unofficial count, 29 athletes from 22 countries participated in the event.