Canada competed at the 1984 Summer Olympics in Los Angeles, United States, held from 28 July to 12 August 1984.

408 competitors, 257 men and 151 women, took part in 193 events in 23 sports.

[1] Partly due to the Soviet Union-led boycott of these Games, Canada enjoyed its best-ever results at the Summer Games, coming in sixth place in the number of Gold medals won, and fourth place in the total medals won - double their second best total in 1996 and 2016.

Women's individual competition: Men's 100 metres Men's 200 metres Men's 400 metres Men's 800 metres Men's 5,000 metres Men's 10,000 metres Men's marathon Men's 110 metres Hurdles Men's 400 metres Hurdles Men's 3,000 metres Steeplechase Men's 4×100 metres relay Men's 4×400 metres relay Men's high jump Men's shot put Men's discus throw Men's javelin throw Men's Decathlon Men's 20 km walk Men's 50 km walk Women's 100 metres Women's 200 metres Women's 400 metres Women's 800 metres Women's 1,500 metres Women's 3,000 metres Women's marathon Women's 100m hurdles Women's 400m hurdles Women's 4×100 metres relay Women's 4×400 metres relay Women's high jump Women's shot put Women's discus throw Women's Heptathlon Canada competed in the Baseball tournament that was held as a demonstration sport.

Men's Super Heavyweight (+ 91 kg) Thirteen cyclists, ten men and three women, represented Canada in 1984.