Michael R. Weimer (born c. 1971) is a United States Army soldier who has served as Sergeant Major of the Army since August 4, 2023.

[2] Weimer is a graduate of Norwich University, where he was awarded a bachelor's degree in strategic studies and defense analysis.

[2] Weimer joined the United States Army in 1993, and earned his green beret in 1996.

He served as a Special Forces weapons sergeant.

During his 19 years under United States Army Special Operations Command (USASOC), he served as a Delta Force operator[4] and as USASOC’s operations (G3) sergeant major with tours in the United States Central Command and United States Southern Command areas of responsibility.