Carlos A. Ruiz

{{Short description|US Marine Corps senior non-commissioned officer}}

{{Use mdy dates|date=June 2023}}

{{Use American English|date=June 2023}}

{{Infobox military person

| name = Carlos A. Ruiz

| image = SMMC Carlos A. Ruiz.jpg

| image_size =

| caption = Ruiz in August 2023

| nickname =

| birth_date = {{Birth year and age|1975|4}}

| birth_place = Sonora, Mexico

| death_date =

| death_place =

| allegiance = United States

| branch = United States Marine Corps

| branch_label = Branch

| serviceyears = 1993–present

| rank = Sergeant Major of the Marine Corps

| servicenumber =

| unit = Headquarters Marine Corps
United States Marine Corps Reserve
United States Marine Corps Forces, South
4th Marine Logistics Group

| commands =

| battles = War in Afghanistan
Iraq War

| awards = Legion of Merit (2)
Bronze Star Medal

| relations = Married to Andrea M. Ruiz, USMC, MSgt (Ret.)

| laterwork =

}}

Carlos A. Ruiz (born April 1975) is a United States Marine who has served as the 20th Sergeant Major of the Marine Corps since August 10, 2023.{{cite web|url=https://www.dvidshub.net/webcast/32522|title=Sergeant Major of the Marine Corps Relief and Appointment Ceremony|access-date=2023-08-05|website=DVIDS}} He most recently served as the Command Senior Enlisted Leader of the United States Marine Corps Reserve and United States Marine Corps Forces, South.{{Cite web|url=https://www.militarytimes.com/news/your-marine-corps/2023/06/05/meet-the-next-sergeant-major-of-the-marine-corps/|title=Meet the next sergeant major of the Marine Corps|first=Irene|last=Loewenson|date=June 5, 2023|website=Military Times|accessdate=June 6, 2023}}{{Cite web|url=https://www.military.com/daily-news/2023/06/05/ruiz-named-marine-corps-next-top-enlisted-leader.html|title=Black's Replacement: Marine Corps Picks Next Sergeant Major|first=Konstantin|last=Toropin|date=June 5, 2023|website=Military.com|accessdate=June 6, 2023}}{{Cite web|url=https://www.marforres.marines.mil/Leaders/Command-Senior-Enlisted-Leader/|title=Command Senior Enlisted Leader|website=www.marforres.marines.mil|accessdate=June 6, 2023}}

In December 2022, Ruiz was selected for assignment as command senior enlisted leader of the United States Space Command, before he was instead selected to be the sergeant major of the Marine Corps.{{Cite web|url=https://www.defense.gov/News/Releases/Release/Article/3250395/command-senior-enlisted-leader-assignment/|title=Command Senior Enlisted Leader Assignment|website=U.S. Department of Defense|accessdate=June 6, 2023}}