McGillivray Creek was named for Archie McGillivray (born 1829), who settled to ranch at Campbell Creek near Kamloops early in the 20th Century, and was active in racing circles. During the 1890s the Brett Group Mine near the falls was an important speculation and rich producer during the years of its operation. Near the creek's headwaters at McGillivray Pass a jade and silver prospect by Delina Noel kept her from taking the time to travel to town to receive a provincial award.