William to host his first investiture.
William will present awards to recipients from across the UK, including OBEs to Wimbledon champion Andy Murray and Vicar Of Dibley producer Jon Plowman.
The Duke has recently given up operational duties with the RAF after serving for three years as a search and rescue helicopter pilot at Valley on Anglesey.
He is now in a "transitional" year, sources have said, and is considering options for his "public service".
But with his grandmother the Queen and grandfather the Duke of Edinburgh advancing in years there is speculation that William may take on extra responsibilities.
The Queen hosts the large majority of investitures but shares the role with the Prince of Wales and the Princess Royal.
Around 25 investitures are held each year, with most staged in the Ballroom at Buckingham Palace, but others take place at the Palace of Holyroodhouse in Edinburgh and at Windsor Castle.
It is likely the Duke has been practising for the event as whoever presides over the ceremony has to "dub" new knights with a sword, pin awards on the recipients and know something about each person being honoured.
William already carries out a number of royal engagements in support of his charitable interests and those of the Royal Foundation he is joint patron of with wife Kate and Prince Harry.