The meeting comes after Hipkins confirmed he had secured a meeting with the King during his visit to London for this weekend’s coronation.
He is also due to meet with UK Prime Minister Rishi Sunak at 10 Downing St during the visit.
Before leaving New Zealand earlier this week, he was asked if he was a monarchist or a republican - to which Hipkins replied he had already stated he was the latter.
However, he did not see himself having a discussion on whether we should become a republic if he won another term.
It was not a priority at the moment and considered it to be a distraction, given the factors affecting people in New Zealand at the moment, he told media.
“I don’t particularly have any interest in pushing that debate on New Zealanders at the moment.”
Hipkins is travelling with a delegation including Governor-General Dame Cindy Kiro, Opposition leader Chris Luxon, NZ High Commissioner to the UK Phil Goff and former All Blacks captain Richie McCaw, who is representing the Order of New Zealand.