Mount Jumper () is a mountain (2,890 m) located 7 nautical miles (13 km) east of Mount Viets in the central part of the Sentinel Range, Ellsworth Mountains in Antarctica. It overlooks Ellen Glacier to the north and east, and its tributaries Patton Glacier to the south and Rumyana Glacier to the northwest.
First mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1957-59. Named by Advisory Committee on Antarctic Names (US-ACAN) for Maj. Jesse T. Jumper, United States Air Force (USAF), who participated in establishing the South Pole Station in the 1956-57 season.
This article incorporates public domain material from the United States Geological Survey document "Mount Jumper" (content from the Geographic Names Information System).