One Iranian archer qualified for the men's individual recurve by reaching the semifinal stage and obtaining one of the three available spots at the 2019 Asian Championships in Bangkok, Thailand.
Athletics
Iranian athletes further achieved the entry standards, either by qualifying time or by world ranking, in the following track and field events : ;Track & road events ;Field events
Basketball
Men's tournament
Iran men's basketball team qualified for the Olympics as the highest-ranked Asian squad at the 2019 FIBA World Cup in China, marking the country's return to the sport after a twelve-year absence. ;Team roster
Men's team event – 1 team of 12 players
Boxing
Iran entered two male boxers into the Olympic tournament. 19-year-old Danial Shahbakhsh and Asia's second-seeded boxer Shahin Mousavi secured the spots on the Iranian squad, by scoring a box-off triumph each in their respective weight divisions at the 2020 Asia & Oceania Qualification Tournament in Amman, Jordan.
Cycling
Road
Iran entered one rider to compete in the men's Olympic road race, by virtue of his top 50 national finish in the UCI World Ranking.
Athlete
Event
Time
Rank
Men's road race
Men's time trial
Fencing
Iranian fencers qualified a full squad in the men's team sabre for the first time at the Games, as the highest-ranked nation from Asia outside the world's top four in the FIE Olympic Team Rankings.
Karate
Iran entered four karateka into the inaugural Olympic tournament. 2018 Asian Games champions Bahman Askari and Sajjad Ganjzadeh, Sara Bahmanyar, and Hamideh Abbasali qualified directly for their respective kumite categories by finishing among the top four karateka at the end of the combined WKF Olympic Rankings.
Shooting
Iranian shooters achieved quota places for the following events by virtue of their best finishes at the 2018 ISSF World Championships, the 2019 ISSF World Cup series, and Asian Championships, as long as they obtained a minimum qualifying score by May 31, 2020.
Taekwondo
Iran entered two athletes into the taekwondo competition at the Games. Armin Hadipour qualified directly for their respective weight classes by finishing among the top five, while Mirhashem Hosseini received a spare berth freed up by the 2019 World Grand Slam winner in the men's lightweight category, as the next highest-placed taekwondo practitioner, not yet qualified, in the WT Olympic Rankings.
Volleyball
Indoor
Men's tournament
Iran men's volleyball team qualified for the Olympics by winning the final match and securing an outright berth at the Asian Olympic Qualification Tournament in Jiangmen, China. ;Team roster
Men's team event – 1 team of 12 players
;Group play ---- ---- ---- ----
Wrestling
Iran qualified five wrestlers for each of the following classes into the Olympic competition; all of whom finished among the top six to book Olympic spots in the men's freestyle, men's Greco-Roman at the 2019 World Championships. On February 19, 2020, United World Wrestling awarded an additional Olympic license to Iran in men's freestyle 125 kg, as a response to the doping violations on the Syrian and Uzbek wrestler at the World Championships. ;Men's freestyle ;Men's Greco-Roman
