Governor-General David Hurley says he is deeply saddened at the passing of Prince Philip, the Duke of Edinburgh, at the age of 99 in London.
"It is my solemn and melancholy duty to advise that His Royal Highness Prince Philip, Duke of Edinburgh, has passed away earlier today," he said in a statement.
"I have informed the Prime Minister, and I understand the Government will make further announcements concerning funeral arrangements and how Australians can express their condolences, in due course.
"This is a sad and historic day.
"On behalf of the Australian people, I extend our deepest condolences to Her Majesty and family, the people of the Commonwealth and to all those who share in this sad news."
Governor-General Hurley said Australians should give thanks for His Royal Highness' lifetime of service, devotion and commitment.
"Service beginning with his time in the Royal Navy - including during the Second World War when he was mentioned in dispatches while a young sub-Lieutenant on-board HMS VALIANT.
"Devotion to Her Majesty The Queen, whom he married in 1947 and lovingly supported throughout his life, and to the entire Royal Family.
"And commitment to the Commonwealth and the many hundreds of organisations - including many here in Australia - of which he served as Patron and for whom he was a passionate advocate and supporter.
The governor-general said Prince Philip visited Australia 21 times over the years, including on each of Her Majesty's State Visits.
"He was a popular, engaged and welcome visitor to our shores.
"His impact was profound - not least on the more than 775,000 young Australians who have participated in The Duke of Edinburgh's International Award since it began here in 1959.
