The article investigates the modern historical memory in Iran of the Persian campaign of Peter the Great that became the first serious attempt of Russia to conquer a part of its southern neighbor’s territory. The article analyses Iranian historical memory of these events using relevant research publications of Persian-speaking authors, Iranian news agencies, and schoolbooks. It compares the Iranian perceptions of the Peter’s Persian campaign and of other Russo-Iranian conflicts at the beginning of the 19th century. The author concludes that the Iranians do not view Peter’s campaign as a war and distinguish it from other conflicts of the century. This perception can be accounted for by the short life of the results of the campaign; by the quick, peaceful restoration of the status quo; by the lack of an official state of war between Russia and the governments of Tahmasp II and the shahs from the Hotak dynasty and clashes between the armies of the countries. The Iranian media and educational literature do not mention the Persian campaign, even in the few publications and sections devoted directly to Peter I. Historical literature hardly mentions it either. Such “oblivion” of the main event in Peter’s of the first Russian emperor related to Iran does not stem from the degree of attention to his personality in Iran. He appears in the media more often than many other Russian rulers and draws comparatively much attention in the educational and scientific literature even in comparison with other significant historical figures. Iranian historiography perceives Peter the Great as a ruler who defined a new vector of Russo-Iranian interrogation but not as a person who attempted expansion on the territory of Iran. This experience helps to analyze the history of bilateral relations and the factors influencing the Iranian perception of the Russian image.