William Evans (c. 1852 – November 26, 1893) was an Irish-born soldier in the U.S. Army who served with the 7th U.S. Infantry during the Black Hills War.

He participated in campaigns against the Sioux in the Montana Territory and, at Big Horn from July 9–14, 1876, volunteered to deliver critical dispatches between Generals George Crook and Alfred Terry.

Benjamin F. Stewart and James Bell, volunteered to carry important dispatches between Generals George Crook and Alfred Terry.

There had been two previous attempts to get messages though, both unsuccessful, and Evans and his comrades had to pass through 100 miles of territory occupied by an estimated 2,000 Sioux and Cheyenne warriors.

Hiding during the day and traveling at night, they were able to safely avoid Sioux war parties.