List of 2013 box office number-one films in Australia

This is a list of films which placed number one at the box office in Australia during 2013. All amounts are in Australian dollars.

Number-one films

• A Iron Man 3 opened on 24 April across Australia, the day before the box office for the week was totaled (which was 25 April that week; as most films open on Thursdays, the Australian box office week "begins" on that date). It managed to debut at #2 from tickets sold in just one day, and nearly topped the box office—The Croods earned $3.5 million, while Iron Man 3 grossed $3.4 million.
• B Madman Entertainment's Reel Anime festival of 2013 peaked inside the top 20 in its second week of release, the week ending 9 October (at #20). It ran for a week in select New Zealand cities, then in Australia from 26 September in Adelaide and 3 October in other locations to 16 October (9 October in Adelaide). The films were: ', ', A Letter to Momo, ' and The Garden of Words.