Spain competed at the 2000 Summer Olympics in Sydney, Australia. 321 competitors, 216 men and 105 women, took part in 165 events in 27 sports.
  
 Spain again sent only one archer to the Olympics. She was defeated by one point in the first round, despite being tied for the 10th highest score in the round.
 Men's 100 m
 Men's 200 m
 Men's 400 m
 Men's 800 m
 Men's 1.500 m
 Men's 5.000 m
 Men's 10.000 m
 Men's 400 m hurdles
 Men's 4 × 400 m
 Men's 3.000 m steeplechase
 Men's shot put
 Men's discus
 Men's long jump
 Men's triple jump
 Men's 20 km walk
 Men's 50 km walk
 Men's marathon
 Men's decathlon
 Women's 400 m
 Women's 800 m
 Women's 1.500 m
 Women's 5.000 m
 Women's 10.000 m
 Women's 4 × 400 m
 Women's shot put
 Women's discus
 Women's javelin throw
 Women's long jump
 Women's triple jump
 Women's high jump
 Women's pole vault
 Women's 20 km walk
 Women's marathon
 Women's heptathlon
 Men's light flyweight (– 48 kg)
 Men's kayak singles 500 m
 Men's kayak singles 1.000 m
 Men's canoe singles 500 m
 Men's canoe singles 1.000 m
 Men's canoe doubles 500 m
 Men's canoe doubles 1.000 m
 Women's kayak singles 500 m
 Women's kayak doubles 500 m
 Women's kayak fours 500 m
 Men's kayak singles
 Men's canoe singles
 Men's canoe doubles
 Women's kayak singles
 Men's competition
 Women's competition
 Men's individual time trial
 Men's road race
 Women's individual time trial
 Women's road race
 Men's sprint
 Men's individual pursuit
 Men's 1 km time trial
 Men's point race
 Men's keirin
 Men's Olympic sprint
 Men's team pursuit
 Men's Madison
 Women's point pace
 Men's 3 metre springboard
 Men's 3 metre springboard
 Men's 10 metre platform
 Women's 10 metre platform
 Women's 10 Metre Platform
 Four male fencers represented Spain in 2000.
  
 Qualification Legend: FA=Final A (medal); FB=Final B (non-medal); FC=Final C (non-medal); FD=Final D (non-medal); FE=Final E (non-medal); FF=Final F (non-medal); SA/B=Semifinals A/B; SC/D=Semifinals C/D; SE/F=Semifinals E/F; QF=Quarterfinals; R=Repechage
 Spain competed in nine events in the Sailing competition at the Sydney Olympics. In seven of the events, they finished in the top 10 but were unable to win a medal. This was the first time since 1972 that Spain failed to win an Olympic medal in sailing.
 Four Spanish shooters (two men and two women) qualified to compete in the following events:
 Men's 50m freestyle
 Men's 100m freestyle
 Men's 1500m freestyle
 Men's 200m butterfly
 Men's 100m backstroke
 Men's 200m backstroke
 Men's 200m individual medley
 Men's 400m individual medley
 Men's 4 × 100 m freestyle
 Men's 4 × 100 m medley relay
 Women's 50m freestyle
 Women's 200m freestyle
 Women's 400m freestyle
 Women's 100m butterfly
 Women's 200m butterfly
 Women's 200m breaststroke
 Women's 100m backstroke
 Women's 200m backstroke
 Women's 400m individual medley
 Women's 4 × 200 m freestyle relay
 Women's 4 × 100 m medley relay
 Duet
 Three of Spain's four triathletes finished the inaugural Olympic triathlon. Ivan Rana was the only one to place in the top eight, with a fifth-place finish in the men's event.
 Women's competition:
 Men's competition:
 Preliminary round (Group A)

 Team roster
 Head coach: Raúl Lozano
 Men
 
Women