Tokyo 2020 will be the third consecutive Olympic Games for Cadbury, and the second Paralympic Games following its Rio 2016 campaign.

The partnership will see Cadbury continue as the official chocolate partner of the two teams in the lead-up and during the Games.

The Tokyo 2020 Olympics are due to take place from July 24 to August 9, with the Paralympics scheduled to be held from August 25 to September 6.

From April onwards, it is claimed Cadbury will "unite" Australians to celebrate the iconic sporting event through a series of marketing activities, including in-store promotions, public relations and above-the-line advertising.

"We’re thrilled to partner with the Australian Olympic and Paralympic teams this year, and we’re proud to support Australia’s hard-working and passionate athletes for the third time as they prepare for Tokyo 2020," Paul Chatfield, marketing director at Cadbury Australia, said.

The Australian Olympic Committee (AOC) is said to be equally excited about the partnership.

"With the Tokyo Olympic Games the closest thing to a home Games since Sydney 2000, we are delighted to have Cadbury on board once again to support our Australian Olympic team," AOC chief executive Matt Carroll said.

"Without the efforts of Cadbury, our athletes across all the sports could not fulfil their Olympic dreams."

Paralympics Australia chief executive Lynne Anderson added: "Paralympics Australia is so pleased to welcome Cadbury into the Australian Paralympic family for its second consecutive Summer Games cycle.

"Cadbury contributed greatly to our team in the lead-up to Rio, and was no doubt part of our success on the world stage.

"We’re looking forward to having them by our side as we strive to achieve even greater things in Tokyo."

Cadbury was an Australian team sponsor for the 1996 Olympics in Atlanta and was official sponsors of the 2000 Games in Sydney.

In August 2009, the company signed a sponsorship deal with the AOC for the 2010 Winter Olympics in Vancouver and 2012 Games in London.