Stephanie O'Sullivan (born October 3, 1959)[1] is a former Principal Deputy Director of National Intelligence (PDDNI) who was appointed to that position on February 18, 2011.

In that role, she managed the CIA's technological innovation and support to case officer operations.

Before the CIA, she worked in the Office of Naval Intelligence and at TRW, which is now part of Northrop Grumman.

[5] She was nominated by President Barack Obama on January 5, 2011 at the recommendation of Director James R. Clapper.

[5] In November 2020, O'Sullivan was named a volunteer member of the Joe Biden presidential transition Agency Review Team to support transition efforts related to the United States Intelligence Community.