Switzerland competed at the 2000 Summer Olympics in Sydney, Australia.

102 competitors, 64 men and 38 women, took part in 82 events in 19 sports.

Switzerland had four top 20 finishes during the Sailing competition at the 2000 Sydney Olympics.

Men's Single Handed Dinghy (Finn) Men's Double Handed Dinghy (470) Women's Mistral Open Two Handed Keelboat (Star) Open High Performance Two Handed Dinghy (49er) Men's 50m Freestyle Men's 100m Freestyle Men's 100m Butterfly Men's 100m Breaststroke Men's 100m Backstroke Men's 200m Individual Medley Men's 400m Individual Medley Men's 4 × 100 m Medley Relay Women's 400m Freestyle Women's 800m Freestyle Women's 100m Breaststroke Women's 200m Breaststroke Duet Men's Singles competition: At the inaugural Olympic triathlon competition, Switzerland was represented by three men and three women.

The women captured both the gold medal and the bronze medal, while the men added one more top eight finish.