Brittany Mae[1] O'Brien (born 27 May 1998) is an Australian diver.

Brittany was unable to qualify for the 2016 Rio Summer Olympics after placing third in the 10m platform event at the Australian Diving Championships.

Brittany unexpectedly received a late call up on 30 July 2016 to compete in the 2016 Summer Olympics after Brittany Broben was forced to pull out of the event due to a shoulder injury.

The result for the Rio 2016 Olympic Games had Brittany qualify for the semi-finals of the women's 10m platform and come overall 15th in the event.

This biographical article relating to Australian diving is a stub.