Undalsan

{{Short description|South Korean mountain}}

{{more citations needed|date=June 2012}}

{{Infobox mountain

| name = Undalsan

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| elevation_m = 1097

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| location =Gyeongsangbuk-do, South Korea

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Undalsan is a mountain of Gyeongsangbuk-do, eastern South Korea. It has an elevation of 1,097 metres.{{cite book| last=An Gyeong-ho | year=2007| title=한국 300 명산 (300 Korean Mountains) |location=Seoul|publisher=깊은솔 (Gipeunsol)|isbn=978-89-89917-21-2}}