Costa Rica at the 2000 Summer Olympics

Costa Rica competed at the 2000 Summer Olympics in Sydney, Australia. The nation bagged two bronze medals at the 2000 Games.

Both medals were won in swimming by Claudia Poll. These medals doubled Costa Rica's overall Olympic medal haul to four. All four medals had been claimed in swimming. Previously, Claudia had won Costa Rica's first ever Olympic gold medal at the 1996 Games. Eight years earlier, Claudia's sister Silvia Poll won the silver medal in Women's 200 meter freestyle at the 1988 Summer Olympics in Seoul, South Korea. This was the first Olympic medal ever for a Costa Rican athlete.

Athletics
Men's Marathon
 * José Luis Molina
 * Final – 2:20:37 (→ 39th place)

Cross Country Mountain Bike
Men's Individual Competition
 * José Adrián Bonilla
 * Final – 2:30:02.72 (→ 33rd place)

Swimming
Men's 50m Freestyle
 * Estebán Blanco
 * Preliminary Heat – 23.72 (→ did not advance)

Men's 100m Breaststroke
 * Juan José Madrigal
 * Preliminary Heat – 01:05.14 (→ did not advance)

Men's 200m Breaststroke
 * Juan José Madrigal
 * Preliminary Heat – 02:24.49 (→ did not advance)

Women's 200m Freestyle
 * Claudia Poll
 * Preliminary Heat – 02:00.11
 * Semi-final – 01:59.63
 * Final – 01:58.81 (→ Bronze medal.svg Bronze Medal)

Women's 400m Freestyle
 * Claudia Poll
 * Preliminary Heat – 04:09.33
 * Final – 04:07.83 (→ Bronze medal.svg Bronze Medal)

Women's 800m Freestyle
 * Claudia Poll
 * Preliminary Heat – DNS (→ did not advance)

Tennis
Men's singles
 * Juan Antonio Marín

Triathlon
Women's Individual Competition:
 * Karina Fernández – DNF