William J. Hartman

{{short description|U.S. Army general}}

{{Use dmy dates|date=December 2024}}

{{Use American English|date=August 2021}}

{{for|persons of a similar name|William Hartman (disambiguation)}}

{{Infobox military person

| name = William J. Hartman

| image = LTG William J. Hartman (2).jpg

| image_size =

| alt =

| caption = Official portrait, 2024

| nickname =

| birth_date =

| birth_place = Mobile, Alabama, U.S.

| death_date =

| death_place =

| placeofburial =

| allegiance = United States

| branch = United States Army

| serviceyears = 1989–present

| rank = Lieutenant General

| servicenumber =

| unit =

| commands = Cyber National Mission Force
780th Military Intelligence Brigade
524nd Military Intelligence Battalion

| battles = Gulf War
Iraq War
War in Afghanistan

| awards = Defense Superior Service Medal
Legion of Merit (2)
Bronze Star Medal (3)

| relations =

| laterwork =

}}

William J. Hartman is a United States Army lieutenant general who has served as the acting commander of United States Cyber Command, director of the National Security Agency, and chief of the Central Security Service since 3 April 2025, and as the deputy commander of the United States Cyber Command since 16 January 2024. He previously served as the commander of the Cyber National Mission Force from August 2019 to January 2024.{{Cite web |url=https://www.gomo.army.mil/public/Biography/usa-10378/williamj-hartman |title=Major General William J. Hartman - General Officer Management Office |access-date=August 8, 2021 |archive-date=May 21, 2021 |archive-url=https://web.archive.org/web/20210521034820/https://www.gomo.army.mil/public/Biography/usa-10378/williamj-hartman |url-status=live }}{{Cite web|url=https://www.arcyber.army.mil/About/Leaders/Leaders-Article-View-Page/Article/1654060/brig-gen-william-j-hartman/|title=Brig. Gen. William J. Hartman|website=www.arcyber.army.mil}}{{Cite web|url=https://www.executivegov.com/2019/06/gen-william-hartman-to-lead-cyber-national-mission-force-as-commander/|title=Gen. William Hartman to Lead Cyber National Mission Force as Commander|date=June 20, 2019|website=Executive Gov|access-date=August 8, 2021|archive-date=October 22, 2020|archive-url=https://web.archive.org/web/20201022012745/https://www.executivegov.com/2019/06/gen-william-hartman-to-lead-cyber-national-mission-force-as-commander/|url-status=live}}{{Cite web|url=https://www.fifthdomain.com/dod/cybercom/2019/06/19/one-of-the-militarys-top-cyber-groups-will-get-a-new-leader/|title=One of the military's top cyber groups will get a new leader|first=Mark|last=Pomerleau|date=June 21, 2019|website=Fifth Domain|access-date=August 8, 2021|archive-date=June 5, 2021|archive-url=https://web.archive.org/web/20210605022556/https://www.fifthdomain.com/dod/cybercom/2019/06/19/one-of-the-militarys-top-cyber-groups-will-get-a-new-leader/|url-status=live}}{{Cite web|url=https://www.af.mil/News/Article-Display/Article/2079756/dod-has-enduring-role-in-election-defense/|title=DoD has enduring role in election defense|website=U.S. Air Force|date=February 10, 2020 |access-date=August 8, 2021|archive-date=April 18, 2021|archive-url=https://web.archive.org/web/20210418004041/https://www.af.mil/News/Article-Display/Article/2079756/dod-has-enduring-role-in-election-defense/|url-status=live}}

In May 2023, Hartman was nominated for promotion to lieutenant general with assignment as the deputy commander of United States Cyber Command.{{cite web|url=https://www.congress.gov/nomination/118th-congress/686?s=1&r=52|title=PN686 — Maj. Gen. William J. Hartman — Army, 118th Congress (2023-2024)|date=2023-05-30|access-date=2023-05-31|website=U.S. Congress}}{{cite AV media|url=https://www.c-span.org/video/?529553-3/senate-session-part-3|title=Senate Session, Part 3|type=video|date=2023-07-26|access-date=2023-07-27|website=C-SPAN}}

On 3 April 2025, Timothy D. Haugh, the director of the National Security Agency, was removed from his position. Hartman was named as acting director.{{Cite web |url=https://www.washingtonpost.com/national-security/2025/04/03/nsa-director-fired-tim-haugh/ |title=National Security Agency and Cyber Command chief Gen. Timothy Haugh ousted |date=3 April 2025 |last=Nakashima |first=Ellen |work=The Washington Post |access-date=3 April 2025}}