Firmin Ayessa (born 2 November 1951) is a Congolese politician who has served in the government of Congo-Brazzaville as Deputy Prime Minister for Civil Service, State Reform, Labour, and Social Security since 2017. As a long-time associate of President Denis Sassou Nguesso, Ayessa has held a series of key posts at the Presidency of Congo-Brazzaville; he was Director of the Civil Cabinet of the President from 1999 to 2002, Deputy Director of the Presidential Cabinet from 2002 to 2007, and he was Director of the Presidential Cabinet from 2007 to 2017.