The youngster, who was sporting green glasses and a checkered cap with his school uniform, then handed the Duchess of Sussex a bouquet of flowers, before throwing his arms around her as well.
A 5-year-old boy earlier stole the show in a long line of school children who met the royals at Dubbo airport.
After touring the Woodley's farm to better understand the effect the drought has had on farmers, Prince Harry and Meghan sat down for tea with the family.
"Luke's favourite person in the world is Santa Claus, who has a beard". Three years ago, Prince Harry noticed Dunne while greeting fans outside the Sydney Opera House.
Check out E!'s gallery below and prepare to melt!
Their first official engagement in Dubbo is at the dedication of a new plane for the Royal Flying Doctor Service.
He spoke of high suicide rates and the need for a strong community to help others who are doing it tough. They were both casually dressed for the visit - Harry in trousers and a shirt, Meghan in black skinny trousers, an untucked white shirt and checked blazer.
The royal couple was due to meet Richard and Margaret Woodley as part of the Picnic in the Park portion of the second day of their Australian visit. "When Harry came over to me, he came over first, he said "girls can do anything" because that's what it says on my shirt", Gibbons's grandmother told 2DayFM.
"I am shaking, it was incredible, I am speechless", Sovanah said afterwards.
They will visit Melbourne on Thursday before returning to Sydney.
On Monday the pair will go to Queensland´s Fraser Island, the world´s largest sand island, before jetting off to Fiji, Tonga and New Zealand.