The Central Office of Information (COI) was the UK government's marketing and communications agency.

[1] It worked with Whitehall departments and public bodies to produce information campaigns on issues that affected the lives of British citizens, from health and education to benefits, rights and welfare.

[3] As a result, the government announced that COI would be closed and its remaining functions transferred to the Cabinet Office.

[5] A representative of the Incorporated Society of British Advertisers (IBSA), a trade body for advertisers in the UK, described the COI in 2009 as holding "a very high reputation amongst ISBA members, and indeed, in the industry as a whole, for being robust, transparent and fair", and in regard to its tendering processes, being "at the pinnacle of best practice".

This article related to government in the United Kingdom or its constituent countries is a stub.