| 2000 World Junior Championships in Athletics | |
| Host City: |  Santiago, Chile |
| Nations: | 151 |
| Athletes: | 1122 |
| Events: | 43 |
| Dates: | 17–22 October |
| Stadium: | Estadio Nacional Julio Martínez Prádanos |
| Previous: | 1998 Annecy |
The 2000 World Junior Championships in Athletics were held in Santiago, Chile between 17 and 22 October 2000.
Mark Lewis-Francis | 10.12 CR | Salem Mubarak Al-Yami | 10.38 | Marc Burns | 10.40 PB | ||
Paul Gorries | 20.64 | Marcin Jędrusiński | 20.87 | Timothy Benjamin | 20.94 | ||
| Hamdan Obah Al-Bishi | 44.66 CR | Brandon Simpson | 45.73 PB | Shinji Ishikawa | 45.77 NJR | ||
Nicholas Wachira | 1:47.16 | Florent Lacasse | 1:47.61 | Antonio Manuel Reina | 1:47.90 | ||
| Cornelius Chirchir | 3:38.80 | Wolfram Müller | 3:39.37 | Philemon Kibet | 3:40.77 PB | ||
| Gordon Mugi | 13:44.93 | Kenenisa Bekele | 13:45.43 | Cyrus Kataron | 13:46.12 | ||
| Robert Kipkorir Kipchumba | 28:54.37 | Duncan Lebo | 28:58.39 | Abraha Hadush | 29:44.65 | ||
Yuniel Hernández | 13.60 WLJ | Thomas Blaschek | 13.80 | Ladji Doucouré | 13.84 | ||
| Marek Plawgo | 49.23 WLJ | Pieter de Villiers | 50.52 | Ockert Cilliers | 50.58 | ||
| Raymond Yator | 8:16.34 CR | David Chemweno | 8:31.95 PB | Abdelatif Chemlal | 8:43.57 | ||
Cristián David Berdeja | 40:56.47 SB | Yevgeniy Demkov | 40:56.53 | Viktor Burayev | 40:56.57 | ||
| 39.05 CR | 39.33 NJR | 39.47 NJR | |||||
| 3:06.06 WLJ | 3:06.79 | 3:07.05 SB | |||||
| Jacques Freitag | 2.24 | Germaine Mason | 2.24 NJR | Tomasz Śmiałek | 2.21 PB | ||
| Aleksey Khanafin | 5.30 | Aleksandr Korchmyd | 5.30 | Rocky Danners | 5.20 | ||
Cai Peng | 7.88 | Vladimir Zyuskov | 7.84 PB | Yoelmis Pacheco | 7.71 | ||
Marian Oprea | 16.41 | Yoandri Betanzos | 16.34 | Mohammed Hamdi Awadh | 16.29 | ||
| Rutger Smith | 19.48 CR | Ivan Yushkov | 19.06 | Tomasz Chrzanowski | 19.00 NJR | ||
| Hannes Hopley | 59.51 NJR | Niklas Arrhenius | 59.19 PB | Rutger Smith | 58.70 | ||
| Gerhardus Pienaar | 78.11 NJR | Andreas Thorkildsen | 76.34 NJR | Park Jae-Myong | 72.36 | ||
Eşref Apak | 69.97 NJR | Dylan Armstrong | 67.50 | Aaron Fish | 67.44 | ||
| Dennis Leyckes | 7897 CR | David Gómez | 7772 NJR | André Niklaus | 7712 PB | ||
| Veronica Campbell | 11.12 CR | Katchi Habel | 11.39 PB | Fana Ashby | 11.47 | ||
| Veronica Campbell | 22.87 CR | Sina Schielke | 23.20 | Vida Anim | 23.81 | ||
| Jana Pittman | 52.45 | Aneta Lemiesz | 52.78 NJR | Norma González | 53.30 | ||
| Jebet Langat | 2:01.51 | Georgie Clarke | 2:02.28 | Lucia Klocová | 2:04.00 PB | ||
| Abebech Negussie | 4:19.93 | Rose Kosgei | 4:20.16 | Georgie Clarke | 4:20.21 | ||
| Beatrice Jepchumba | 9:08.80 | Jane Chepkoech | 9:10.05 | Etalemahu Kidane | 9:11.55 PB | ||
Dorcus Inzikuru | 16:21.32 | Meseret Defar | 16:23.69 | Sharon Cherop | 16:23.73 | ||
| Susanna Kallur | 13.02 WLJ | Fanny Gérance | 13.21 PB | Adrianna Lamalle | 13.27 | ||
| Jana Pittman | 56.27 | Marjolein de Jong | 56.50 | Melaine Walker | 56.96 NJR | ||
| Lyudmila Yefimkina | 44:07.74 | Tatyana Kozlova | 44:24.43 PB | Sabine Zimmer | 46:49.97 NJR | ||
| 43.91 WLJ | 44.05 SB | 44.78 NJR | |||||
| 3:33.82 WLJ | 3:33.99 SB | 3:34.49 | |||||
Blanka Vlašić | 1.91 | Marina Kuptsova | 1.88 | Marizca Gertenbach | 1.88 PB | ||
| Yelena Isinbayeva | 4.20 CR | Annika Becker | 4.10 | Vanessa Boslak Fanni Juhász  | 4.10 4.10 SB | ||
| Concepción Montaner | 6.47 | Zhou Yangxia | 6.45 | Kumiko Ikeda | 6.43 NJR | ||
| Anastasiya Ilyina | 14.24 | Anna Pyatykh | 14.18 PB | Dana Veldáková | 13.92 NJR | ||
| Kathleen Kluge | 17.37 PB | Li Meiju | 16.57 | Natallia Kharaneka | 16.40 | ||
| Xu Shaoyang | 54.41 | Jana Tucholke | 53.97 PB | Olga Goncharenko | 53.64 | ||
Jarmila Klimešová | 54.82 | Inga Kožarenoka | 54.64 | Halina Kakhava | 54.26 | ||
| Ivana Brkljacic | 62.22 CR | Virginia Balut | 60.23 PB | Yunaika Crawford | 59.98 | ||
| Carolina Klüft | 6056 WLJ | Lidiya Bashlykova | 5898 | Sanna Saarman | 5707 | ||
According to an unofficial count through an unofficial result list, 1122 athletes from 151 countries participated in the event. This is in agreement with the official numbers as published.