Stewart Todd is joining next month following three years at the Department for Work and Pensions (DWP), where he was head of news.
The FCA was formed last month following the abolition of the Financial Services Authority, as one part of a new system of financial services regulation following the banking crisis.
Todd, who will be reporting to director of comms Zitah McMillan, said: ‘This is a great opportunity to get involved with an organisation at the beginning of its creation.
‘It’s been a great few years at the DWP and I have been working on things very relevant to my new job. The main focus will be on how we let consumers know we are here to help them, and show we are making a difference.’
His move follows 15 years in government roles, including a stint in the Cabinet Office and time working for Labour MP John Prescott when he was deputy prime minister.
The FCA was created as part of a new financial regulatory set-up that also includes the Bank of England's Financial Policy Committee and the Prudential Regulation Authority.