Hardman has also represented Australia at test, under 21 and A level and was the Wallabies third string hooker at the 2007 Rugby World Cup behind Adam Freier and Stephen Moore.
Hardman played for Australia in international matches, including those at the under-21 and A-level levels, and served as the Wallabies' third-string hooker during the 2007 Rugby World Cup, trailing Adam Freier and Stephen Moore.