Akubras and best wishes for royal couple

Australian prime minister Malcolm Turnbull has sent his congratulations to he new Duke and Duchess of Sussex on their marriage.

Malcolm Turnbull has sent his best wishes to the royal newlyweds who he met in March. (AAP)

Malcolm Turnbull has congratulated the the new Duke and Duchess of Sussex who wed in a touching ceremony in Windsor on Saturday.

"Australia wishes you long life and happiness together," he said in a statement.

The government will contribute $10,000 to the Australian International Military Games Limited, a not-for-profit charity that will bring the Invictus Games to Sydney in October.

"The Invictus Games showcases the courage, resilience and determination of wounded veterans, while promoting the power of sport for recovery and rehabilitation," Mr Turnbull said in a statement.

And when they arrive for the games, they will each receive an Akubra hat specially crafted for them at the Kempsey factoy.

They aren't the only gifts they are getting from Australia.

On Friday, the NSW government announced two newborn koalas at Taronga Zoo would be named after the royal couple.

Although the sex of the joeys isn't yet know, one will be Meghan and one will be Harry.