The mathematician is widely considered to be the father of computer science and artificial intelligence.
World War Two codebreaker Alan Turing has been revealed as the face of the new £50 banknote.
The mathematician, who is widely considered to be the father of computer science and artificial intelligence, was selected from a shortlist of 12 options.
Bank of England Governor Mark Carney made the announcement at the Science and Industry Museum in Manchester.
Mr Carney also revealed imagery depicting Dr Turing and his work that will be used for the reverse of the note.
The banknote is expected to enter circulation by the end of 2021.
Mr Carney said: "Alan Turing was an outstanding mathematician whose work has had an enormous impact on how we live today.
While the mathematician is perhaps best known for his work devising code-breaking machines at Bletchley Park during the Second World War, he also played a pivotal role in the development of early computers.
He set the foundations for work on artificial intelligence by considering the question of whether machines could think.
Dr Turing was homosexual and was convicted of gross indecency for his relationship with a man. He was posthumously pardoned by the Queen.
His legacy continues to have an impact on both science and society today.
The Banknote Character Advisory Committee announced it would celebrate the field of science with the new £50 note in 2018.
This was followed by a six-week public nomination period.
The Bank of England receive a total of 227,229 nominations covering 989 eligible people.
The committee considered all the nominations before deciding on the shortlist, which included Ada Lovelace, Charles Babbage and Stephen Hawking.
Mr Carney then made the final decision.
"As the father of computer science and artificial intelligence, as well as war hero, Alan Turing's contributions were far-ranging and path-breaking.
© Sky News 2019
