Jack Thomas Watts was a New Zealand politician of the National Party and the twenty-ninth Minister of Finance, from November 1954 to 12 December 1957, when he retired.

The minister of Finance, originally known as colonial treasurer, is a minister and the head of the New Zealand Treasury, responsible for producing an annual New Zealand budget outlining the government's proposed expenditure. The position is often considered to be the most important cabinet post after that of the prime minister.