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Prince Harry and Meghan Markle's popularity ratings have fallen to their lowest levels ever after their bombshell interview with Oprah Winfrey, according to a new poll.

The couple's popularity has plummeted in the wake of the explosive broadcast, in which the couple made accusations of racism within the Royal Family.

But the British public appear to have reacted negatively to the couple's interview, with Prince Harry's popularity plunging 15 points since the broadcast, according to a new YouGov survey.

Meghan's popularity has also sunk by 13 points in the last 10 days, figures from the poll show.

Meanwhile, in a sign of unwavering show of support, Britons continue to be most fond of the Queen, with four in five people (80 per cent) liking her, the survey says.

Prince William and his wife Kate also remain very popular, according to the poll, with about three quarters of Britons giving them favourable reviews. 

Prince Andrew remains by far the most unpopular royal, with an 82 per cent negative view, according to the poll. 

Prince Harry and Meghan Markle's popularity ratings have fallen to its lowest level ever after their bombshell interview with Oprah Winfrey, according to a new poll

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According to the data, of more than 1,600 Britons between March 10 and 11, public opinion of Prince Harry is now negative - having previously been positive prior to Sunday night's world exclusive interview.

The figures show 45 per cent of Britons now have a positive opinion of Prince Harry, while 48 per cent regard him negatively.

This gives the once popular prince a net score of -3 in terms of popularity -  a drop of 15 points from March 2.

Meanwhile, Meghan's popularity scores have also fallen considerably.

Currently, only a third (31 per cent) of Britons have a positive opinion of the Duchess of Sussex, while more than (58 per cent) view her negatively.

This means she has a net popularity rating of -27, down from -14 just over a week ago.

Though the Queen's popularity remains unwavering, Harry's father, Prince Charles, has seen a fall in popularity since the interview, according to YouGov. 

Two in five people (42 per cent) now have a negative opinion of the Prince of Wales - up from 36 per cent on March 2.  

It comes as the Queen and Prince Charles this week backed Prince William after he insisted the royals were 'very much not a racist family'.

William on Thursday became the first senior Windsor to address directly the string of allegations made by Harry and Meghan in their explosive Oprah interview.

Buckingham Palace and Clarence House, the official homes of the Queen and the Prince of Wales, were both said to be supportive of William's solo intervention.

© Provided by Daily MailThe Queen and Prince Charles (pictured together in 2019) have backed Prince William after he spoke out to insist the Royal Family are 'very much not a racist family' as the fallout from Harry and Meghan's bombshell interview continues to grow

© Provided by Daily MailPictured: Britain's Prince William, Duke of Cambridge and Britain's Catherine, Duchess of Cambridge gesture during a visit to School21 following its re-opening after the easing of coronavirus lockdown restrictions in east London on March 11, 2021

The prince was speaking as he and his wife Kate visited a school in east London to support a youth mental health support service.

Aides had initially insisted the couple would not answer questions about the interview because it would 'not be appropriate' in a school setting.

His firm rebuttal came after Buckingham Palace issued a statement on Tuesday on behalf of the Queen expressing the family's sadness at learning the 'full extent of how challenging the last few years have been for Harry and Meghan'.

The statement said the issues they raised, particularly that of race, were very 'concerning'.

But it made clear that the Queen and other senior royals were keen to stand their ground, adding: 'While some recollections may vary, they are taken very seriously and will be addressed by the family privately.' 

Harry and Meghan raised claims of racism within the royal family during the Oprah interview. 

They claimed they had experienced open racism from family members and staff, and alleged a member of Harry's family even expressed 'concern' about 'how dark' their unborn son would be.

They also said the family had been uniquely unsupportive of the pressures they were going through, leaving Meghan feeling suicidal and fuelling their decision to quit the UK.