An all-girls school on Sydney's northern beaches has banned it's students from playing Australian rules football, citing concerns of long-term brain injuries.

Queenwood School for Girls, located in the Sydney suburb of Mosman, confirmed to The Australian that students would not be playing the sport after considering the research on the risk of brain damage, especially towards teenage girls.

"At Queenwood, we loved everything about Australian rules football except for the risk of trauma to the brain," Queenwood principle Elizabeth Stone said.

"We did an extensive review of the research, drawing on expert advice, and what we found concerned us.

"There were three decisive factors. The first was the mounting evidence that adolescents are at greater risk of brain injury than either children or adults.

"The second was the data showing that females experience concussion more frequently and more severely than males. This meant that our students, teenage girls, were in the highest risk category.

"While individuals vary in how many blows to the head they can sustain before crossing the threshold to detectable brain injury, we weren't comfortable with the idea that our students would be pushing closer to that limit on our watch. They have a lifetime ahead of them.

"We phased out Australian rules football with reluctance but real certainty on the basis of the evidence that it was in their best interests."

The school has produced distinguished athletes in the past. Nicola Barr, the No.1 draft pick in the 2016 AFLW draft, is a former Queenwood student, as is former Olympian Zali Steggall.

Barr, in a statement to 7NEWS.com.au, said the move was "disappointing".

โ€œIt's pretty disappointing,โ€ Barr said.

SYDNEY, AUSTRALIA - JANUARY 28: Katherine Smith of the Giants, Nicola Barr of the Giants and Lisa Steane of the Giants celebrate during the 2022 AFLW Round 04 match between the GWS Giants and the Western Bulldogs at Henson Park on January 28, 2022 in Sydney, Australia. (Photo by Dylan Burns/AFL Photos via Getty Images)

โ€œI know that my life now certainly wouldn't be what it was if I hadn't been given the opportunity to play AFL at Queenwood when I was 16, or 17.

โ€œI know how much AFL has given me and I know how much AFL has given other girls who went to Queenwood and I think it's really important for us to promote girls and let them play as much sport as they can.

โ€œIt's really empowering, it develops so much resilience, and we can see the benefits of girls playing sports.โ€