Ivan Ivanovich Agayants (Russian: Иван Иванович Агаянц) (28 August 1911 – 12 May 1968) was a leading Soviet NKVD/KGB intelligence officer of Armenian origin.
Born the son of Hovhanes Agayants, priest of the Armenian Apostolic Church, in the town of Elizavetpol, in modern day Azerbaijan on 28 August 1911, he followed two elder brothers into the secret police.
After the fall of the Second Spanish Republic, he took part in the operation to remove the leaders of the Communist Party of Spain, José Díaz and Dolores Ibárruri, to Moscow.
He reportedly helped prevent a German operation to attack the three allied leaders meeting at the 1943 Teheran Conference.
After working on forgeries of memoirs sponsored by the Soviet secret police to further the leadership's political goals, and, as part of Operation Seat 12, helping to produce a play The Deputy that maligned Pius XII, he was appointed the first head of Department D (disinformation) of the KGB First Chief Directorate.