The Lyapin (Russian: Ляпин; Mansi: Сакв-я̄, Sakv-jā) is a river in Khanty-Mansi Autonomous Okrug, Russia, a left tributary of the Severnaya Sosva.

It is 151 kilometres (94 mi) long, and has a drainage basin of 27,300 square kilometres (10,500 sq mi).

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