William Capers James (June 22, 1896 – September 30, 1974) was an officer of the United States Marine Corps with the rank of brigadier general, most noted for his service as chief of staff, 1st Marine Division during the Guadalcanal Campaign and later as commanding officer, Marine Corps Base San Diego.James spent most of his career in administrative positions and never held field command until he was appointed chief of staff, 1st Marine Division.
He sailed with that division to Guadalcanal in August 1942, but was relieved in September of that year due to poor performance as divisional chief of staff and ordered back to the United States.
James never held combat command again and spent the remainder of his career in administrative positions.