Mary F. O'Brien

Mary F. O'Brien is a retired United States Air Force lieutenant general who served as the director for command, control, communications, and computers/cyber and chief information officer of the Joint Staff from 2022 to 2023. She previously served as the Deputy Chief of Staff for Intelligence, Surveillance, Reconnaissance and Cyber Effects Operations from 2019 to 2022. Prior to serving in that position, O'Brien commanded the Twenty-Fifth Air Force.

O'Brien is from Bloomfield Hills, Michigan and graduated from the United States Air Force Academy in 1989 with a Bachelor of Science in chemistry. In April 2022, O'Brien was nominated for appointment as director of command, control, communications, and computers/cyber and chief information officer of the Joint Staff.