O'Neill Butte is a 6,071-foot-elevation summit located in the Grand Canyon, in Coconino County of northern Arizona, United States. It is situated 2.5 miles east-northeast of Grand Canyon Village, one mile northeast of Mather Point, and one mile immediately northwest of Yaki Point. Cedar Ridge connects O'Neill Butte with Yaki Point on the South Rim. Topographic relief is significant as O'Neill Butte rises 3,600 feet above the Colorado River in two miles.