Herbert Breverly Crosby (December 24, 1871 – January 11, 1936) was a career officer in the United States Army.
A veteran of the Spanish–American War and World War I, he attained the rank of major general as the Army's Chief of Cavalry.
Born in Kansas and raised in Kansas and Illinois, Crosby graduated from West Point in 1893 and was commissioned as a second lieutenant of Cavalry.
He served throughout the western United States at the start of his career, and served in Cuba during the Spanish–American War.
As his career progressed, Crosby served in the Philippines during the Philippine–American War and in Arizona during the Mexican Border Campaign.
During World War I, Crosby commanded the 351st Infantry Regiment, a unit of the 88th Division, and served on several occasions as acting commander of the division's 176th Infantry Brigade.
After the war, Crosby graduated from the Army's School of the Line, Command and General Staff College, and Army War College; he was an instructor at the Staff College after his graduation, and after he graduated from the War College he served as its deputy commandant.
In 1926, Crosby was appointed as the Army's Chief of Cavalry, and he served until retiring in 1930.
From 1930 to 1933, Crosby was one of the three federal commissioners responsible for administering the government of Washington, DC.
He died in Washington in 1936, and was buried at Arlington National Cemetery.