Sir Alexander William Younger (born 4 July 1963) is a career British intelligence officer for the Secret Intelligence Service (MI6) who, since November 2014, has served as the Chief of the Secret Intelligence Service, succeeding Sir John Sawers on his retirement.
In April 2019, the Government extended Younger's contract to maintain stability through the Brexit negotiations, a move which would make him the longest-serving MI6 chief in 50 years.