William C. Bryan (September 9, 1852 – March 27, 1933) was a United States Army soldier and athlete who received the Medal of Honor.

In February 1876 he was attached to the Medical Company of the Big Horn Expedition under the direction of Assistant Surgeon Curtis E. Munn.

On the seventeenth, he was riding with Company K of the 2nd United States Cavalry when the troop was ordered by Colonel Joseph J. Reynolds to charge and capture an encampment of Northern Cheyenne and Lakota Sioux.

He later re-enlisted in a volunteer regiment from Illinois for service in the Spanish-American War and was eventually promoted to the rank of captain.

Citation: "Hospital Steward Bryan accompanied a detachment of cavalry in a charge on a village of hostile Indians and fought through the engagements, having his horse killed under him.

He continued to fight on foot, and under severe fire and without assistance conveyed two wounded comrades to places of safety, saving them from capture."