| Nancy Hann | |
| Allegiance: | United States |
| Branch: | NOAA Commissioned Officer Corps |
| Serviceyears: | 1999–2026 |
| Rank: | Vice Admiral |
| Commands: |
|
| Awards: | Department of Commerce Silver Medal with O device Department of Commerce Bronze Medal |
| Alma Mater: | University of San Diego (BA) Embry-Riddle Aeronautical University (MS) George Washington University (GrDip) Harvard University (MPA) |
Nancy A. Hann (born 1973) is a vice admiral in the NOAA Commissioned Officer Corps. Hann last served as the deputy under secretary for operations at the National Oceanic and Atmospheric Administration from June 2024 to December 2025.[1] [2] She also held the role of acting NOAA Administrator from January 20 to March 31, 2025.[3] Prior to that, she served as the director of the NOAA Corps and director of the NOAA Office of Marine and Aviation Operations (OMAO) from November 2021 to July 2024,[4] and was the NOAA Corps and OMAO's deputy director from April 2018 to November 2021.[5] Hann is the first woman to achieve the rank of vice admiral in the history of the NOAA Corps and its predecessors.
Nancy Hann grew up in Illinois, as a child she recalled one of her favorite things was to watch the thunderstorms. She's always been interested in Earth's weather and her mother claimed she had been interested in weather patterns since the beginning.[6]
Hann started her career with NOAA as a fisheries observer in 1996 and she commissioned as an officer in the NOAA Corps in 1999. She served on commercial fishing vessels, NSF research vessels and various NOAA ships and aircraft, as a pilot, flight meteorologist, NOAA Diver and unmanned aircraft systems pilot.[7] She is responsible for the direct leadership and management of OMAO's operational assets, including the agency's fleet of 16 research and survey vessels and nine aircraft.
Prior Assignments:
In July 2021, RDML Hann was nominated for promotion to rear admiral (two-stars) and assignment as the new director of the NOAA Commissioned Officer Corps, succeeding retired Rear Admiral Michael J. Silah. She was confirmed on 16 November 2021.[8]
In June 2024, RADM Hann was appointed for promotion to vice admiral and appointment as NOAA's deputy under secretary for operations.[9] [10] [11] She assumed office and rank, effective 15 July 2024.[12] [13]
On January 20, 2025, Hann became Acting Under Secretary of Commerce for Oceans and Atmosphere as well as NOAA Administrator.
On April 1, 2025, Hann returned to her position as NOAA’s Deputy Under Secretary for Operations.[14] In November 2025, Politico announced that she will retire from the NOAA Corps effective 1 March 2026 after over 27 years of service.[15] Hann has been on terminal leave since 22 December 2025.[16]
| NOAA Aviator insignia |
| Department of Commerce Gold Medal with "O" device | ||
| Department of Commerce Silver Medal with "O" device | ||
| NOAA Corps Meritorious Service Medal | ||
| NOAA Administrator's Award | ||
| NOAA Corps Commendation Medal with two inch gold stars | ||
| NOAA Corps Achievement Medal with three " gold stars | ||
| NOAA Corps Director's Ribbon with two " gold stars | ||
| NOAA Unit Citation Award with " bronze star | ||
| NOAA Sea Service Deployment Ribbon | ||
| NOAA Corps Pacific Service Ribbon | ||
| NOAA Corps Mobile Duty Service Ribbon | ||
| NOAA National Response Service Ribbon |
