The paratriathlon competitions at the 2016 Summer Paralympics in Rio de Janeiro took place from 10 to 12 September 2016 at Fort Copacabana.

[1] This was the first Paralympic Games to feature paratriathlon, one of two new sports (along with paracanoe) added to the schedule for 2016.

The competition took place across four of the five recognised paratriathlon classifications; both genders competed in the PT2 and PT4 classifications, the PT1 category for men only, where wheelchair athletes used handcycles on the cycling leg, and racing wheelchairs on the run leg, and the PT5 category for women only, where women with visual impairments were assisted by a sighted guide, using a tandem bicycle on the cycling leg; as with other events for blind and visually impaired athletes, any guide did not count as a quota athlete but was awarded a medal as appropriate.

Athletes must have a sighted guide of the same gender and nationality during the entire race and use a tandem bicycle during the cycling stage.

To be eligible for selection by an NPC, athletes had to: Ten places, not including guides in the PT5 classification, were available for each of the six events, awarded as follows: