The third season of Bachelor in Paradise Australia premiered on 15 July 2020. Osher Günsberg reprised his role as host from the previous two series and the Bachelor Australia franchise.
Intended to air in April 2020, the airing of the show was held back by 10 to cover for the production shut-downs caused by the COVID-19 pandemic. The series premiered on 15 July 2020.
Abbie, Ciarran, Timm, Brittany and Jamie were revealed on 13 March 2020. Helena, Mary, Brittney and Cass were further announced on 17 June 2020. The full returning Episode 1 cast were revealed on 6 July 2020, which included Jake, Glenn, Janey and Niranga. Keira was also announced as an intruder and she first appeared in episode five. Jessica was announced as an intruder at the end of the first episode and Renee was announced at the end of the second, making their first appearance in the second and third episodes respectively. Alisha was announced as an intruder on 19 July 2020. Conor, Chris and Tim, who had not appeared on any season of The Bachelorette or a Bachelor franchise series, were announced as intruders on 22 July 2020. Kiki entered Paradise as an intruder in episode 5 and Jackson, Matt and Scot in episode 7.