Triathlon is one of the sports at the quadrennial Commonwealth Games competition. It was first granted Commonwealth Games sport status in 2002, and has been held in each edition since, except in thw Delhi 2010 Games. Until 2022, it was a core sport which had to be included in each competition's sporting programme. Para-triathlon was first included as an optional sport in the Gold Coast 2018 games. The next appearance of the sport will take place in The Royal Town of Sutton Coldfield, as part of the 2022 Commonwealth Games hosted by Birmingham, England. In April 2022, triathlon was announced among the events approved for the 2026 Commonwealth Games in Victoria, Australia
Currently there are five triathlon events in the Commonwealth Games. Individual events are held for men and women, while a mixed team relay has been on the programme since 2014.
Addiitonally, as part of its program of integrating parasport into the Commonwealth Games, two paratriathlon events were included in the 2018 Games in Gold Coast, Australia. These events, one for each sex, where wheelchair paratriathlon events ('PTW1' and 'PTW2' classifications) using a multiple start format to ensure fairness across different wheelchair classes. In the 2022 Games the events will be for athletes with visual impairments ('PTVI' classification). A paratriathlon, as yet undesignated, has been announced for Victoria 2026.
At the 1990 Commonwealth Games at Auckland, the Triathlon was a demonstration event; won by Erin Baker (women) and Rick Wells (men), both from New Zealand.
English winners of the individual events and the relay in 2014, Jodie Stimpson and Alistair Brownlee are the only triathletes to win two Commonwealth Games gold medals. Brownlee's silver in the relay in 2018 makes him the most successful Commonwealth Games triathlete on record, ahead of Stimpson, his brother Jonathan with one gold and two silvers, and Vicky Holland with one medal of each colour, the only Commonwealth Games triathlete to have this full set.
|Games||Year||Host city||Host country||Best nation||Events|
|XXI||2018||Gold Coast, Queensland||Australia||England||5|
|2002 ()||Simon Whitfield (CAN)||Miles Stewart (AUS)||Hamish Carter (NZL)|
|2006 ()||Brad Kahlefeldt (AUS)||Bevan Docherty (NZL)||Peter Robertson (AUS)|
|2014 ()||Alistair Brownlee (ENG)||Jonathan Brownlee (ENG)||Richard Murray (RSA)|
|2018 ()||Henri Schoeman (RSA)||Jacob Birtwhistle (AUS)||Marc Austin (SCO)|
|2002 ()||Carol Montgomery (CAN)||Leanda Cave (WAL)||Nicole Hackett (AUS)|
|2006 ()||Emma Snowsill (AUS)||Samantha Warriner (NZL)||Andrea Hewitt (NZL)|
|2014 ()||Jodie Stimpson (ENG)||Kirsten Sweetland (CAN)||Vicky Holland (ENG)|
|2018 ()||Flora Duffy (BER)||Jessica Learmonth (ENG)||Joanna Brown (CAN)|
|2014|| England (ENG)
| South Africa (RSA)
| Australia (AUS)|
|2018|| Australia (AUS)
| England (ENG)
| New Zealand (NZL)|
Nicole van der Kaay
|2018 PTWC||Joe Townsend (ENG)||Nic Beveridge (AUS)||Bill Chaffey (AUS)|
|2018 PTWC||Jade Jones (ENG)||Emily Tapp (AUS)||Lauren Parker (AUS)|
|4||South Africa (RSA)||1||1||1||3|
|6||New Zealand (NZL)||0||2||3||5|
|Totals (8 nations)||12||12||12||36|