Cecil Clay (February 13, 1842 – September 23, 1903) was captain of Company K in the 58th Pennsylvania Volunteer Infantry Regiment in the Union Army during the American Civil War. He performed gallantly while wounded, earning the award of the Congressional Medal of Honor for his actions during the assault and capture of Fort Harrison, Virginia in the Confederate defenses of Richmond, Virginia on September 29, 1864. He was later chief clerk of the United States Department of Justice.