Reuter made her debut for Australia in the lead-up to the 2003 FIFA Women's World Cup. Having made only four appearances for the national team - all in a pre-World Cup tour - Reuter made her World Cup debut against China in the second match of the tournament, replacing Sacha Wainwright who suffered an injury in the first match.[3][4]
^"Karla Reuter". Matildas.org.au. 14 April 2003. Archived from the original on 25 March 2004. Retrieved 11 February 2024 – via National Library of Australia.