Chadwickryggen
{{Short description |Mountain in Spitsbergen, Norway}}
{{Infobox mountain
| name = Chadwickryggen
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| elevation_m = 1640
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| map = Svalbard
| map_size = 150
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| location = Spitsbergen, Svalbard, Norway
| range =
| coordinates = {{coord|79|5.7|N|16|46.9|E|type:mountain_region:NO_scale:100000|format=dms|display=inline,title}}
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Chadwickryggen is a mountain on Spitsbergen in Svalbard, Norway.{{cite web |url=http://miljo.npolar.no/placenames/pages/detaile.asp?placeNameID=82254P |title=Chadwickryggen |publisher=Norwegian Polar Institute |accessdate=31 March 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20110606111949/http://miljo.npolar.no/placenames/pages/detaile.asp?placeNameID=82254P |archivedate=6 June 2011 }} At {{convert|1640|m}} high, it is the fourth-largest peak on Svalbard.{{cite web |url=http://www.ssb.no/english/subjects/00/00/20/nos_svalbard_en/nos_d330_en/tab/013.html |title=Geographical survey. Fjords and mountains |publisher=Statistics Norway |date=22 October 2009 |accessdate=31 March 2010}} It is located west of Wijdefjorden between Smutsbreen and Tryggvebreen in Ny-Friesland. It is named for the English physicist James Chadwick (1891–1974).