The Russian city of Stavropol-on-Volga, where Togliatti had been instrumental in establishing the AutoVAZ (Lada) automobile manufacturing plant in collaboration with Fiat, was renamed Tolyatti (as transliterated from Тольятти, the Russian spelling of his name) in his honor in 1964, after his death.
The theory of polycentrism was coined by Palmiro Togliatti and was understood as characterization of working conditions of communist parties in comparison between different countries after the de-stalinization in the former Soviet Union 1956.
Together with Ernst Thälmann of Germany, Maurice Thorez of France, Palmiro Togliatti of Italy, Earl Browder of the United States, and Harry Pollitt of Britain, Buck was one of the top leaders of the Joseph Stalin-era Communist International.