Mary F. O'Brien
U.S. Air Force Lieutenant general
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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.[1] Prior to serving in that position, O'Brien commanded the Twenty-Fifth Air Force.[1]
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Mary F. O'Brien | |
|---|---|
| |
| Allegiance | United States |
Branch | United States Air Force |
Service years | 1989–2023 |
Rank | Lieutenant General |
| Commands | Twenty-Fifth Air Force 70th Intelligence, Surveillance and Reconnaissance Wing 691st Intelligence, Surveillance and Reconnaissance Group 22nd Intelligence Squadron |
Conflicts | War in Afghanistan |
| Awards | Defense Distinguished Service Medal Air Force Distinguished Service Medal Defense Superior Service Medal (4) Legion of Merit |
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.[2] 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.[3][4]
Effective dates of promotions
| Rank[1] | Date |
|---|---|
 Second Lieutenant | May 31, 1989 |
 First Lieutenant | May 31, 1991 |
 Captain | May 31, 1993 |
 Major | July 1, 1999 |
 Lieutenant Colonel | March 1, 2002 |
 Colonel | August 1, 2007 |
 Brigadier General | May 2, 2014 |
 Major General | August 2, 2017 |
 Lieutenant General | November 8, 2019 |
