Custer Ridge (Mount Custer) () is a ridge in North Cascades National Park in the U.S. state of Washington. Located in the northern section of the park, Custer Ridge rises to the west of Silver Lake, north-northwest of Mount Spickard. The high point along Custer Ridge is a peak tentatively named Mount Custer, which lies near the southwestern end of the ridge. Custer Ridge extends beyond the Canada-US border.