Dame Clare Moriarty DCB (born 6 April 1963) is the Chief Executive of Citizens Advice and former British civil servant, who served as Permanent Secretary of the Department for Environment, Food and Rural Affairs between 2015 and 2019 and as Permanent Secretary of the Department for Exiting the European Union (DExEU) from March 2019 until January 2020. In November 2017, she was appointed the first civil service “faith and belief” champion, to represent all faiths and beliefs and promote interfaith dialogue. After leaving the Civil Service when DExEU was closed, she took up a new role as chief executive of Citizens Advice in April 2021.