The Communist Party of Moldavia was the ruling and the sole legal political party in the Moldavian SSR, and one of the fifteen republic-level parties that formed the Communist Party of the Soviet Union (CPSU) until the fall of the Soviet Union in 1991. During World War II, it was the driving force of the Moldovan resistance against Axis occupation.

The Moldavian Soviet Socialist Republic or Moldavian SSR, also known as the Moldovan Soviet Socialist Republic, Moldovan SSR, or simply Moldavia or Moldova, was one of the 15 republics of the Soviet Union which existed from 1940 to 1991. The republic was formed on 2 August 1940 from parts of Bessarabia, a region annexed from Romania on 28 June of that year, and parts of the Moldavian Autonomous Soviet Socialist Republic, an autonomous Soviet republic within the Ukrainian SSR.