Dana T. Merrill (October 15, 1876 – August 3, 1957) was a career officer in the United States Army. A veteran of the Spanish–American War and World War I, Merrill attained the rank of brigadier general, and was most notable as the World War I chief of staff for the 37th Division, and the commander of the 10th Infantry Regiment, three infantry brigades, and two corps areas.