John Ernest Vaizey, Baron Vaizey (1 October 1929 – 19 July 1984), was a British economist. Vaizey was an alumnus of Queen's College, Cambridge.
Vaizey was a former member of the Fabian Society and the Labour Party who became friends with Margaret Thatcher in the early 1970s. In December 1980 he publicly declared support for the Conservative Party.
On 23 June 1970, he was created a life peer with the title Baron Vaizey, of Greenwich in Greater London.
- Richard Cockett, (1994)Thinking the Unthinkable, p. 229-230.