Aksha (Russian: Акша) is a rural locality (a selo) and the administrative center of Akshinsky District of Zabaykalsky Krai, Russia, located at the confluence of the Aksha and Onon Rivers, 169 kilometers (105 mi) south of Chita.

[5] It was founded in 1750 as a Cossack frontier fort to prevent penetration of the Chinese into the Russian territory.

In 1872, it was granted town status, but was demoted to a rural locality after the October Revolution.

Precipitation is quite low, but is much higher in summer than at other times of the year.

On 21 July 2004, the locality set the high temperature record for Asian Russia at 41.7 °C (107.1 °F), which stood until 2010.