Brianna Throssell OAM (born 10 February 1996)[2] is an Australian professional swimmer who previously represented DC Trident at the International Swimming League.

Throssell competed in the 2014 Summer Youth Olympics, where she won seven bronze medals.

[3] She represented her country at the 2016 Summer Olympics in Rio de Janeiro where she finished third in the semi-finals with a time of 2:07:19 behind Zhou Yilin and Zhang Yufei.

[4] She won a gold medal in the Women's 4 x 100 metre medley relay and a bronze medal in the Mixed 4 x 100 metre medley relay after swimming the butterfly leg in the heats for both events.

[5][6] She also won a bronze medal in the Women's 4 x 200 metre freestyle relay after swimming in the heats of that event.