The vote was part of the Girls Out Loud campaign which attempts to unite and inspire girls across the country. The national poll saw the Princess of Wales win 35 percent of the vote, earning her the top spot.
The Princess of Wales was up against other members of the Firm, including Queen Consort Camilla and her sister-in-law Meghan Markle.
Other candidates were outgoing Prime Minister Liz Truss, singer and television presenter Rochelle Humes and actress Emma Watson.
While Kate won 35 percent, Camilla received the support of 18 percent and the Duchess of Sussex was left with 17 percent.
Ms Humes won 25 percent, putting her in second place, while Ms Truss finished in third with 23 percent.
The research by the social enterprise group was conducted to assess the UK’s outlook on female careers.
Twitter users appeared to agree with the findings of the poll, with Twitter user @mwalker2950 saying: “In the last two and a half years, she has been a shining light, the king of woman every girl should try to grow up to be, someone honourable, intelligent, and classy.
“That’s Catherine the Princess of Wales’ beauty, it comes from the inside.”
The research also questioned Brits on their beliefs about nursing and female bias in the sector.
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With 42 percent agreeing that nursing as an occupation continues to have “female bias”, the other jobs in the survey included hairdressing, cleaning, teaching, and waiting staff.
It also revealed that over one in 10 of those surveyed, around 15 percent, do not feel that there are more jobs available to women since they began their careers.
Founder of Girls Out Loud, Jane Kenyon, said: “It’s really important that we continue to champion young girls, so they have equal opportunities as they progress through life.
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“Our survey disclosed that many people still believe certain jobs have female bias and it’s important we remove this stigma from society.”
Ms Kenyon added: “It is also clearly important to the British public that women are able to land those top jobs.
“The impact of having a female Prime Minister (only our third ever) is undoubtedly inspiring to the younger generation, as seen by Liz Truss polling in third place.”