(The site has hosted a Kindle store since 2013, but Aussies haven't been able to buy anything more than ebooks).
And it already has a well established overseas presence; it began selling books in the UK and Germany in 1998, just three years after launching in the US.
Country manager Rocco Braeuniger says Amazon hopes to "earn the trust and the custom of Australian shoppers in the years to come."
The Australian store launched with 23 categories, including electronics, DVDs, PCs and software.
It also stocked general merchandise ,like clothing, baby and beauty products.
Amazon.com.au also sells Kindle eReaders (which were previously only available in Australia through third-party retailers) and the Fire TV Stick streaming device.