Arakhley (Russian: Арахле́й; Buryat: Арахира нуур) is a fresh water body in the Chita District, Zabaykalsky Krai, Russia.

It is located in the Beklemishev Depression, at the southeastern end of the Vitim Plateau, west of Chita, Zabaykalsky Krai and lake Kenon.

It is separated from neighboring Lake Shaksha by a low, 1.2 km (0.75 mi) wide landspit.

The 242 km2 (93 sq mi) catchment area of the lake belongs to the Khilok river basin, a tributary of the Selenga.

The fauna of the lake has suffered degradation in the past few decades and commercial fisheries have declined.