Akhtubinsk (Russian: Ахту́бинск) is a town and the administrative center of Akhtubinsky District in Astrakhan Oblast, Russia, located on the left bank of the Akhtuba River (a tributary of the Volga), 292 kilometers (181 mi) north of Astrakhan, the administrative center of the oblast.

Akhtubinsk is the transfer point for Bassol, the industrial complex which extracts salt from Lake Baskunchak.

A state flight testing center known as Valery Chkalov 929 GLITs MO RF is located in Akhtubinsk.

The Groshevo (Vladimirovka) military testing range is located to the north of Akhtubinsk.

In 2012 construction of a site for flight test operations began, including new runway specifically designed to accommodate flight testing of the Sukhoi Su-57 stealth fighter currently under development.