Kristy Giteau (born 16 March 1981) is a former Australian rugby union player. She competed for at the 2010 Women's Rugby World Cup.
Giteau previously played for the Australian women's national rugby league team. She also toured with the Australian schoolgirls basketball team to China and the United States.
Giteau made her international debut for against on 8 August 2009 in Apia. The Wallaroos scored 87 unanswered points over the hosts in their Oceania qualifier for the 2010 World Cup in England.
She was a member of the Wallaroos squad to the 2010 Women's Rugby World Cup that finished in third place. She scored two tries in the tournament.
In 2016, she switched to playing Touch rugby. She was appointed as co-president of Rugby Australia in 2024.
Giteau has three kids with her husband, Soakai Tai. She is the sister of former Wallabies player, Matt Giteau.