奥列尼奥克河（Оленёк）是俄罗斯北部的主要河流，位于勒拿河以西，发源自中西伯利亚高原北部，向东北流入拉普捷夫海河道全长2,292公里，其中约1,000公里的河道可让船只航行。

奥列尼奥克河平均流量每秒1,210立方米，每年有超过8个月被冰封。

The Olenyok River (Russian:Оленёк, sometimes spelled Olenek) is a major river in northern Siberian Russia, west of the lower Lena River and east of the Anabar River. It is 2,292 kilometres (1,424 mi) long, of which around 1,000 kilometres (620 mi) is navigable. Average water discharge is 1,210 cubic metres per second (43,000 cu ft/s). Its major tributary is the Arga-Sala River.