Mount Bonython
{{Short description|Mountain in South Australia}}
{{Use dmy dates|date=July 2019}}
{{Refimprove|date=October 2011}}
{{Infobox mountain
| name = Mount Bonython
| other_name = Little Mount
| photo = Mount Bonython.jpg
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| photo_caption = The summit from the north; Mount Lofty is behind to the right
| map = South Australia
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| location = South Australia, Australia
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| coordinates = {{coord|34|58|0|S|138|42|50|E|type:mountain_scale:100000|format=dms|display=inline,title}}
| elevation_m = 677
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| parent_peak = Mount Lofty
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Mount Bonython ({{Coord|34|58|0|S|138|42|50|E|type:mountain_region:AU-SA}},{{cite web |url=https://www.mindat.org/feature-8166181.html |title=Mount Bonython |ID=8166181 |work=mindat.org |accessdate=20 January 2025 |publisher=Hudson Institute of Mineralogy}} {{convert|677|m|ft|abbr=on}} above sea level{{cite web |url=http://maps.sa.gov.au/plb/ |title=Mount Bonython |ID=SA0008163 |work=Property Location Browser Gazetteer |accessdate=14 November 2014 |publisher=Department of Planning, Transport and Infrastructure, Government of South Australia |archive-url=https://web.archive.org/web/20161012010923/http://maps.sa.gov.au/plb/ |archive-date=12 October 2016 |url-status=dead }}) is one of two major peaks in the Adelaide Hills visible from Adelaide. The other, about a kilometre to the south and some 50 m higher, is Mount Lofty. Mount Bonython is named after Sir John Langdon Bonython and was previously known simply as Little Mount. There is a telecommunications tower used for the Telstra NextG network located at its summit.[http://custom.gps-data-team.com/australia/telstra_nextg_towers/index.php?poi_data=telstra_nextg_towers&file=3G850&navigation=5400 Telstra NextG Towers in Australia]
According to the mythology of the indigenous Kaurna people, the Mount Lofty Ranges were part of the story of the ancestor-creator Nganno. Nganno travelled across the land of the Kaurna and after being wounded in a battle, lay down to die and formed the Mount Lofty Ranges. The current name of the Greater Mount Lofty Parklands, Yurrebilla, is taken from the Kaurna name for the twin hills of Mount Lofty and Mount Bonython, which are supposed to be Nganno's ears.