Tennis Australia said Thursday that it has also granted wild cards to 2012 Australian Open boys' singles champion Luke Saville and Olivia Rogowska, an Australian currently ranked 113th.
Ouanna, ranked 120th in the world, beat current No. 1 Novak Djokovic in the semifinals of the boys' singles draw at the 2004 Australian Open before losing to countryman Gael Monfils in the championship match.
Garcia, ranked 154th, reached the second round of the Australian Open in 2011 in her only appearance in the main draw.
The Australian Open begins Jan. 14 at Melbourne Park.