Peter or Pyotr Parfenovich Vlasov, better known under his pen name Vladimirov, (Russian: Пётр Парфёнович Влади́миров/Влáсов; 1905 – 10 September 1953) was a Soviet diplomat and journalist.

[citation needed] Vladimirov's last appointment was as a Soviet ambassador to Burma in 1952, but due to an illness which eventually led to his death, he never took up the position.

Yury became an Olympic weightlifting champion and a prominent writer; he published his father's diaries in 1973, twenty years after his death.

[3] According to Philip Short, this was done "on instructions from the CPSU Central Committee Secretariat, 'in the context of worsening relations with China', and underwent high-level editing and censorship.

No contemporary diary ever existed, but it was based, at least in part, on Vlasov's radio messages to Moscow, conserved in the Soviet archives.