William Lewis Uanna | |
|---|---|
 Uanna in 1957 | |
| Born | May 13, 1909 Medford, Massachusetts, US |
| Died | December 22, 1961 (aged 52) Addis Ababa, Ethiopia |
| Buried | |
| Allegiance |  United States |
| Service |  United States Army |
| Years of service | 1941–47 |
| Rank |  Major |
| Service number | O-1107189 |
| Commands | 1st Technical Service Detachment |
| Battles / wars | World War II: |
| Alma mater | Tufts University (BA, MA) Suffolk University (LLB) |
| Spouse(s) | Bonnie Leonard |
| Other work | Chief of Central Personnel Clearance at the Atomic Energy Commission The Assistant Area Engineer at the Armed Forces Special Weapons Project Intelligence Specialist at the Central Intelligence Agency Special assistant to the Secretary of Commerce Chief of the Division of Physical Security, Department of State |
William Lewis "Bud" Uanna (May 13, 1909 – December 22, 1961) was an American security expert, who gained prominence as a security officer with the Manhattan Project, which built the first atomic bomb during World War II.
Uanna was in charge of security at the project's facility at Oak Ridge, Tennessee, and later at the 509th Composite Group, which dropped atomic bombs on Hiroshima and Nagasaki.
After the war, he headed the Atomic Energy Commission (AEC) program to provide security clearances to its personnel, and developed the top-secret Q clearance. He later served as chief of physical security at the State Department.