Stephanie Anne Barna is an American military officer, attorney, and civil servant.

After Robert Wilkie's appointment as acting United States Secretary of Veterans Affairs by Donald Trump in 2018, Barna began performing the duties of Under Secretary of Defense for Personnel and Readiness.

[1] She served as general counsel to the majority staff of the United States Senate Committee on Armed Services.

[2] Barna is a Fellow of the National Academy of Public Administration.