Vitaly Sergeyevich Yurchenko (Russian: Виталий Сергеевич Юрченко; born May 2, 1936) is a former high-ranking KGB disinformation officer in the Soviet Union.

Upon his defection to the United States, Yurchenko identified two American intelligence officers as KGB agents: Ronald Pelton and Edward Lee Howard.

In November 1985, before eating a meal at Au Pied de Cochon, a French restaurant in the Georgetown neighborhood of Washington, D.C., Yurchenko told his CIA guard, "I'm going for a walk.

The KGB was reported to have secretly interrogated Yurchenko after his return, under the influence of a truth drug, to ensure he had not been recruited by the CIA as a double agent.

[1] At a 1999 Texas A&M conference attended by several CIA intelligence professionals, as well as KGB General Oleg Danilovich Kalugin, the question of Yurchenko's defection came up.