Ashleigh Jade Brennan (born 18 January 1991) is an Australian gymnast who is currently on the Australia Gymnastics Artistic Women’s National Team. Brennan participated in the 2006 Commonwealth Games where she won an individual silver medal in the Women’s Gymnastics floor exercise and a team gold medal. She competed in the 2008 Olympics in Beijing.
She currently attends Melbourne Girls’ College and is the sister of Berwick footballer Tom Brennan.