This articles aims to present and analyse the healthy relationship between the Islamic Republic of Iran and the Republic of Armenia. Although focusing on the current geopolitical stakes and realities of the relationship, this article will also use history and the perceptions it has built to understand today's situation. Based on a long common history, this relationship inscribes itself in a complex geopolitical regional situation where international and local actors interact. These ties between both countries, although poorly explored, are particularly significant in the fields of politics, economy, energy, and culture. The study of this relationship offers a new outlook of the geopolitical complexity of this part of Eurasia, and presents both actors, Armenia and Iran, in a new light.