The Old Faithful Inn is a hotel in the western United States with a view of the Old Faithful Geyser, located in Yellowstone National Park, Wyoming. The Inn has a multi-story log lobby, flanked by long frame wings containing guest rooms. In the western portion of the park, it sits at an approximate elevation of 7,350 feet (2,240 m) above sea level.

Harry W. Child (1857–1931) was an entrepreneur who managed development and ranching companies in southern Montana. He was most notable as a founder and longtime president of the Yellowstone Park Company, which provided accommodation and transportation to visitors to Yellowstone National Park from 1892 to 1980. Child was, with park superintendent and National Park Service administrator Horace Albright, singularly responsible for the development of the park as a tourist destination and for the construction of much of the park's visitor infrastructure.