The Lada Оkа is a city car designed in the Soviet Union in the later part of the seventies by AvtoVAZ. It entered production in 1988 powered by a 644 cc (39.3 cu in) SOHC two-cylinder engine. While developed at AutoVAZ by a team led by Yuri Kuteev, no production models were built there. Instead, manufacturing was outsourced to SeAZ factory in Serpukhov and ZMA in Naberezhnye Chelny. Massive plans were in place for a new plant in Yelabuga, but these failed to materialize. The car was also produced in Azerbaijan by the Gyandzha Auto Plant. The name comes from the Oka River in Russia upon which Serpukhov is situated.

AvtoVAZ is a Russian automobile manufacturing company owned by the state. It was formerly named as VAZ, an acronym for Volga Automotive Plant in Russian. AvtoVAZ is best known for its flagship series of Lada vehicles. In the Soviet Union, its products used various names, including Zhiguli, Oka, and Sputnik, which were phased out in the 1990s and replaced by Lada for the Russian market. From December 2019 to August 2020, AvtoVAZ sold Niva cars with Chevrolet branding.