Debby Hodgkinson is one of eight World Sevens champions in the squad
Australia have named eight of their world Sevens champions in their squad for the Women's Rugby World Cup.
Cheryl Soon, Debby Hodgkinson, Alex Hargreaves, Tobie McGann, Tui Orbsby, Nicole Beck, Tricia Brown and Ruan Sims will all aim for a unique double.
"If we were able to pull off the double by winning the Rugby World Cup it would be unbelievable, I think our success will shine through," said Hargreaves.
Australia are in Pool A along with Wales, South Africa and New Zealand.
Coach John Manenti will name the Wallaroos captain when the team assembles on 9 August.
Wales open their campaign against Australia at Surrey Sports Park on Friday, 20 August (1400 BST).
The game will be the second of the tournament, two hours after Canada face Scotland in the opener.
Wales play two other tough pool matches at the same venue in Guildford.
South Africa are next up on Tuesday, 24 August (1200 BST), before Wales face holders and favourites New Zealand on Saturday, 28 August (1400 BST).
The tournament then enters the knock-out phase with the fourth round of matches on Wednesday, 1 September, before finals day on Sunday, 5 September.
The minor knock-out matches will be played at Surrey Sports Park, while the semi-finals, third-place play-off and final will be staged at the Twickenham Stoop.
Australia squad: Iliseva Batibasaga, Nicole Beck, Tricia Brown, Cheyenne Campbell, Rebecca Clough, Kristy Giteau, Alexandra Hargreaves, Ashleigh Hewson, Debby Hodgkinson, Tobie McGann, Danielle Meskell, Cobie-Jane Morgan, Lindsay Morgan, Tui Ormsby, Shannon Parry, Silei Poluleuligaga, Kate Porter, Chris Ross, Se'ei Sa'u, Megan Shanahan, Ruan Sims, Cheryl Soon, Rebecca Trethowan, Caroline Vakalahi, Margaret Watson, Sharni Williams.