Heifetz Abram Yakovlevich (party pseudonym: Guralsky) (1890, Riga — 1960) — political activist.

Abram Heifetz graduated from the Commercial Institute.

From 1904 he was a member of the Bund. Between 1906 and 1908 he headed the Bund organization in Riga and simultaneously served on the regional committee of the Social Democratic Party of the Latvian Territory.

He was repeatedly arrested for his political activities.

In 1912 he was sentenced to three years of exile abroad. He participated in the 9th Conference of the Bund and later that same year illegally returned to Russia, where he was arrested again.

From 1914 to 1916 he lived in Austria-Hungary and Italy. In 1916 he moved to Switzerland, where he studied social sciences at the University of Lausanne.

After the February Revolution of 1917, he returned to Russia and carried out party work in Odesa. He was elected a member of the Presidium of the Main Committee of the Bund in Ukraine, first as a candidate member and later as a full member of the Central Committee of the Bund.

He was a member of the Ukrainian Central Rada and participated in the work of the Russian Provisional Council (Pre-Parliament).

In October 1917 he supported the Bolsheviks and became a member of the Odesa Revolutionary Committee.

Following the occupation of Ukraine by Austro-German forces, he operated underground and was again subjected to arrests.

From 1919 to 1921 he served as a representative of the Executive Committee of the Communist International (ECCI) in Germany and France, and subsequently worked in the Comintern apparatus in Moscow.

He was a delegate to the 3rd and 5th Congresses of the Communist International.

Within the Russian Communist Party (Bolsheviks), he aligned himself with the so-called Left Opposition.

In 1926 he was removed from his position in the Comintern and subsequently worked at the Marx–Engels Institute.

At the 15th Congress of the All-Union Communist Party (Bolsheviks) in 1927, he was expelled from the party as a Trotskyist.