David Courtney Boyle was a British author and journalist who wrote mainly about history and new ideas in economics, money, business, and culture. He lived in Steyning in West Sussex. He conducted an independent review for the Treasury and the Cabinet Office on public demand for choice in public services which reported in 2013. Boyle was a co-founder and policy director of Radix, which he characterized in 2017 as a radical centrist think tank. He was also co-director of the mutual think tank New Weather Institute.