Stephen J. Maranian is a retired major general who served in the United States Army from 1988 to 2023.

Commissioned as a Field Artillery officer, Maranian served continuously on active duty, commanding from the platoon to the two-star level.

Maranian served in combat deployments in Afghanistan and Iraq and more than half of his career was spent overseas.

[5][6][7] Commissioned as a Field Artillery officer in 1988, Maranian has led units from the platoon to the two-star level.

[10] Subsequently, he served as the Director for the U.S. Army's Long Range Precision Fires (LRPF) Cross-Functional Team through May 2018, which comprised members of organizations from across the U.S. Army and Marine Corps with the purpose of focusing of modernizing "field artillery forces to be able to deliver lethal, long-range precision fires in order to be able to compete, deter and win on the modern battlefield".

[14] With the school's provost, MG Maranian "directed revisions and innovations in curriculum and teaching methodologies; and hired faculty with expertise in emerging issues, e.g., futures, data analysis, and environmental security".

During Exercise Dynamic Front '22 in July, 2022 the unit successfully paired a U.S. artillery brigade with a multinational fires brigade comprising 11 nations, with NATO's Allied Rapid Reaction Corps providing command and control; a notable "first".

[19] In early 2023, Maranian continued efforts to enhance NATO armies' artillery interoperability visiting several Allied nations, hosting an International Fires Warfighting Forum in Wiesbaden, Germany, and setting conditions for the Dynamic Front 2023 Exercise in Grafenwöhr, Germany and Oksbøl, Denmark.