The men's decathlon 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.
[1][2] Senior implements (106.7 cm (3'6) hurdles, 7257g shot, 2 kg discus) were used.
18/19 October According to an unofficial count, 20 athletes from 14 countries participated in the event.