[3] As part of the Canada Day celebrations held on Parliament Hill, Ottawa in 2019, former three time Olympic gold medalist in rowing, Marnie McBean was named as the Chef De Mission for the team.

[8] On July 24, Annie Guglia received a reallocated spot in the women's street skateboarding event after an injury to a competitor from South Africa.

[9] Due to the effects of the COVID-19 pandemic, the International Olympic Committee announced in July 2021, that travelling alternates would be allowed to compete in the following team sports: field hockey, football (soccer), handball, rugby sevens and water polo.

On July 19, 2021, basketball player Miranda Ayim and rugby sevens athlete Nathan Hirayama were named as co-flagbearers for the Parade of Nations during the opening ceremony.

[12][13] On August 8, 2021, gold medalist and Olympic record holder in the decathlon, Damian Warner was named as the flagbearer during the closing ceremony.

On 18 February 2022 team of Great Britain was disqualified from the Athletics Men's 4 × 100 metres relay due to a doping violation and officially stripped of the silver medal.

[19] In March 2021, Stephanie Barrett claimed one of three available quota places in the women's individual recurve, at the 2021 Pan American Qualification Tournament in Monterrey, Mexico.

[27] On May 5, 2020, 2019 world bronze medalist Evan Dunfee, along with marathoners Trevor Hofbauer and Dayna Pidhoresky, became the first Canadian track and field athletes to be selected to the Tokyo 2020 team.

The eight qualified athletes represents the largest badminton team Canada has sent to the Olympics, and marks the first time since Sydney 2000 the country will compete in all five events.

Canadian canoeists qualified three boats through the 2019 ICF Canoe Slalom World Championships in La Seu d'Urgell, Spain.

[43] With the cancellation of the 2021 Pan American Championships, Canada accepted the invitation from the ICF to send a canoeist in the women's slalom C-1 to the Games, as the highest-ranked eligible nation from the Americas.

[47] In March 2021, the Pan American sprint qualifier that was scheduled to be held in Curitiba, Brazil was cancelled due to concerns over the COVID-19 pandemic.

[58] On July 29, 2020, cyclists Hugo Houle, Michael Woods, Karol-Ann Canuel, and Leah Kirchmann were officially named to the Canadian roster for their second consecutive Games.

[63] Cycling Canada later decided to not enter a team in the women's madison, due to a lack of competition experience in the event, coupled with the fact it would take place before the omnimum.

[64] The full Canadian track team of 13 cyclists (six men and seven women) was officially named on July 29, 2020, featuring Rio 2016 bronze medallists Allison Beveridge, Jasmin Duehring, and Georgia Simmerling in the women's team pursuit and Vincent De Haître, a speed skater and two-time Winter Olympian slated to compete at his first summer Games.

[56] Canadian riders qualified one men's and one women's quota place each as a result of the nation's top three eligible placement for men in the UCI BMX Individual Ranking List, and an eleventh-place finish for women in the UCI BMX Olympic Qualification Ranking List of 1 June 2021.

[73][74] Meanwhile, two eventing spots were awarded to the Canadian equestrians based on the results in the individual FEI Olympic rankings for Group E (North America and Caribbean).

Meanwhile, Marc-Antoine Blais-Belanger completed the Canadian roster by winning the individual men's épée competition at the Pan American Zonal Qualifier in San José, Costa Rica.

[106] Canada qualified one male karateka after Daniel Gaysinsky finished in the top three at the 2021 Karate World Olympic Qualification Tournament in Paris, France.

[109] Gaysinsky would go onto finish in seventh place (out of ten competitors) after winning and drawing one match, while losing two in the group stage.

[111][112][113][114][115][116] The women's lightweight double sculls boat qualification was awarded to the Canadian rowing team through its eighth-place finish at the 2019 Worlds, after New Zealand declined its quota place.

[127][128][129] The full Canadian sailing team (five men and women) was officially named on March 18, 2021, with Nikola Girke becoming the first female sailor for her country to compete in five consecutive Games.

[137] On July 24, Annie Guglia received a reallocated spot in the women's street skateboarding event after an injury to a competitor from South Africa.

[9] Canada women's national softball team qualified by placing second at the WSBC American Qualification Event, held in Surrey, British Columbia.

[138] The Canadian roster of 15 athletes was named on 12 May 2021, including four members of the last team that competed at the Olympics (Lawrie, Rafter, Regula and Sailing).

Sean McColl secured one of the quota places available in the men's combined event at the 2019 IFSC World Championships in Hachioji, Japan.

Skylar Park qualified directly for the women's lightweight category (57 kg) by finishing among the top five in the World Taekwondo Olympic Rankings at the end of the qualification period.

[158][159] In late June 2021, Yvette Yong was allocated an unused quota spot from the 2020 Oceania Qualification Tournament, bringing the team to two athletes.

Melissa Humana-Paredes and Sarah Pavan qualified by winning the gold medal at the 2019 FIVB World Championships in Hamburg, Germany.

[171] Canada men's volleyball team qualified by winning the North American Olympic Qualification Tournament in Vancouver.