Atigun River
{{short description|River in Alaska, United States}}
{{Use American English|date=February 2025}}
{{Infobox river
| name = Atigun River
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| image = File:SHOWING THE ATIGUN RIVER IN THIS VIEW WEST TOWARD THE MOUTH OF THE ATIGUN GORGE. GALBRAITH LAKE APPEARS IN THE DISTANCE - NARA - 550487.jpg
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| image_caption = Atigun River flowing towards the mouth of Atigun Gorge (Dennis Cowals, 1973)
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| pushpin_map = Alaska
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| pushpin_map_caption= Location in Alaska
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| length = 45 miles
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| source1 =
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| source1_coordinates= {{Coord|68.1219444|N|149.4591667|W|display=inline}}
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| mouth =
| mouth_location =
| mouth_coordinates = {{Coord|68.5252778|N|149.0033333|W|display=inline,title}}
| mouth_elevation = 621 meters
| progression =
| river_system = Sagavanirktok River
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The Atigun River ({{IPAc-en|'|æ|t|ə|g|ə|n}}) is a river in the Endicott Mountains in northern Alaska, United States. The source is a glacier terminus, from which it flows northeast to the Sagavanirktok River 20 miles south of its junction with the Ribdon River. It is 45 miles long.{{cite web |title=GNIS Detail - Atigun River |url=https://geonames.usgs.gov/apex/f?p=138:3:::NO::P3_FID,P3_TITLE:1398439,Atigun%20River |website=geonames.usgs.gov |access-date=27 December 2020}}