Daniel Tompkins Van Buren (January 15, 1826 – July 16, 1890) was an American military officer and engineer.
He attained the rank of brigadier general by brevet as a member of the Union Army during the American Civil War.
Born in Kingston, New York and the son of Congressman and Judge John Van Buren, Daniel Van Buren was educated in Kingston, and graduated from the United States Military Academy in 1847.
He served in the Mexican–American War, and remained on duty until resigning after his father's death in 1855.
Returning to Kingston to administer his father's estate, Van Buren studied law, attained admission to the bar, and practiced.
In addition, he worked as an engineer and surveyor, and served as an engineer officer in the state militia.
Van Buren returned to the Army for the American Civil War, serving primarily as chief of staff to John Adams Dix as Dix carried out a series of senior commands; Van Buren advanced through the ranks to colonel, and received a brevet promotion to brigadier general in recognition of his superior service during the war.
After the war, Van Buren worked as an engineer and surveyor, first in Kingston, and later in Plainfield, New Jersey.
He died in Plainfield, and was buried at Green-Wood Cemetery in Brooklyn.