The ceremony, which takes place on 6 May, will see King Charles crowned as monarch and Camilla as Queen Consort.
The presence of the Duke and Duchess of Sussex would be a contentious one and the Savanta survey shows around a third of Brits think he should not attend. But it also highlights a significant disparity in support for Harry across age groups, with young people twice as likely to approve of his invitation to the coronation than older people.
Harry and Meghan's spokesperson has confirmed the couple have received an initial email invitation to the coronation, but have yet to announce whether they plan to attend.
It is thought official invites will be sent close to the event.
The perception of life behind closed doors at the House of Windsor has been hugely impacted in recent months following claims made by the Duke and Duchess of Sussex about the leaking of stories from within the Royal Household and internal family strife.
Harry has also admitted the extent of the fractured relationship he has with his father and brother while promoting his memoir, Spare, saying of any possible reconciliation that the "ball is in their court" but that "the door is always open".
If the Sussexes do attend — the event is on the same day as their son Archie's birthday — it will attract heavy scrutiny that may risk drawing attention away from King Charles. However, their absence will also draw a large amount of speculation and risk further presenting the Royal Family as dysfunctional on a day when the world's spotlight will be firmly on them.
In polling conducted by Savanta for Yahoo, 47% of respondents said that it was right that Harry should be invited to the coronation, while 37% felt he shouldn't be invited — with 15% unsure either way.
But broken down by age, younger people are far more likely (62% in favour) to support his invitation – double the amount of those aged over 65.
The poll shows the older you are, the less likely you are to want Harry at the event: 58% of 24-34 year olds backed an invitation, 55% of 35-44 year olds, 45% of 45-54 year olds and 40% of 55-64 year olds.
Regionally, there was also a difference, with respondents from Northern Ireland (55%) having the highest proportion of those who support Harry being invited to the coronation.
The lowest amount of support was found in Wales (39%) with Scotland at 44% — 48% of respondents in England approve of Harry being invited.
Political affiliations also made a difference in how people responded to the poll: over half of Labour voters (54%) supported Harry being invited compared to 36% in the group of respondents who voted Conservative.
The largest proportion of support for Harry attending was found amongst those who did not vote in the last general election, at 57%.
Watch: The one event 'The Crown' season 5 got completely wrong