Government department responsible for financial policies
A ministry of finance is a ministry or other government agency in charge of government finance, fiscal policy, and financial regulation. It is headed by a finance minister, an executive or cabinet position . A ministry of finance's portfolio has a large variety of names around the world, such as "treasury", "finance", "financial affairs", "economy" or "economic affairs". The position of the finance minister might be named for this portfolio, but it may also have some other name, like "Treasurer" or, in the United Kingdom, "Chancellor of the Exchequer".
https://en.wikipedia.org/wiki/Ministry_of_finance