Hannah Witton is a British YouTuber, broadcaster, and author. Witton creates video blogs and informational content, mostly based around relationships, sex and sexual health, liberation and welfare issues, literature, and travel.  Witton's debut book, Doing It , concentrating on sex and relationships, was released on 6 April 2017. 
Witton was born in Manchester. Though she grew up in England, Witton lived in Austin, Texas for one year as a child. She attended the University of Birmingham where she studied for a degree in History, and was especially interested in sexual history. Witton's video History of Homosexuality was a 2013 finalist in The Guardian and Oxford University Press Very Short Film competition.
Witton began creating YouTube videos on 17 April 2011 as Hannah "Girasol".
In November 2016, Witton was named one of eight Girls' Champions as part of the BBC's 100 Women campaign.  This was in recognition of her videos helping young women with sexual health and relationships.
Witton's first book was released on 6 April 2017, titled Doing It! , under the Wren and Rook imprint. The book concentrates on Sex and Relationships, including Hannah's own experiences and those of her friends. It rose to be Amazon UK's number 1 best seller in the Social Issues category.