Mount Owen () is the second highest peak in the Teton Range, Grand Teton National Park in the U.S. state of Wyoming. The peak is named after William O. Owen, who organized the first documented ascent of the Grand Teton in 1898. Mount Owen is part of the Cathedral Group of high Teton peaks, a collection of peaks in the central section of the range that are particularly rugged. The long Teton Range is the youngest mountain chain in the Rocky Mountains, and began its uplift 9 million years ago, during the Miocene. Several periods of glaciation have carved Mount Owen and the other peaks of the range into their current shapes. Valhalla Canyon is situated on the west slopes of Mount Owen.