Jill Hruby, Under Secretary of Energy for Nuclear Security
- Born – 1959 in Defiance, Ohio
- Education – B.A, Purdue University; M.A., University of California, Berkeley
- Military Service – None
- Profession – Mechanical engineer, government official
- Political Experience – Defense Science Board, National Nuclear Security Administration Defense Programs Advisory Committee, Sandia National Laboratories director
- In office since – 2021
- Family – Undisclosed
- Religious Affiliation – Undisclosed
