Queen Elizabeth II appointed Harris a Commander of the Order of the British Empire - one step below a knighthood - a year after the entertainer painted her portrait to mark her 80th birthday.
The one-time royal favourite had previously been made a Member (MBE) and then an Officer (OBE) of the Order.
Just a week ago, Harris was stripped of his Australian honours.
He has also lost his place in the ARIA Hall of Fame and a British Academy of Film and Television Arts (BAFTA) fellowship.
His image has been erased from public artworks and commemorative plaques removed from city streets.
In sentencing Harris in July 2014 Justice Nigel Sweeney said the former entertainer had shown no remorse for his crimes.
"Your reputation lies in ruins and you have no-one to blame but yourself," the judge said.
A month ago Harris was interviewed over two days by British police from Operation Yewtree regarding fresh allegations of sexual assaults.