Käyser Mountains
{{Short description|Mountain range in Suriname}}
{{for|the mountain in Greenland and the mountain range in Austria|Kayser Mountain|Kaiser Mountains}}
{{Infobox mountain
| name = Käyser Mountains
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| photo =
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| highest =
| elevation_m = 861
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| country = Suriname
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| map = Suriname
| map_caption = Location in Suriname
| map_size = 250
| coordinates = {{Coord|3|1|N|56|41|W|region:SR_type:mountain|display=inline,title}}
| coordinates_note =
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The Käyser Mountains ({{langx|nl|Käysergebergte}}) is a mountain range in the Sipaliwini District of Suriname. It is named after Conrad Carel Käyser. The Käyser Airstrip was built in 1960 at the foot of the mountains as part of Operation Grasshopper to access the interior of Suriname.{{cite web|url=http://landewers.net/grasshopper.pdf|title=Operatie sprinkhaan|website=Landewers|access-date=25 June 2020|language=nl|archive-date=8 August 2022|archive-url=https://web.archive.org/web/20220808125605/http://www.landewers.net/grasshopper.pdf|url-status=dead}}