Transit services through Iran to CIS countries play a pivotal role in shaping regional trade dynamics by providing efficient and cost-effective routes that connect landlocked CIS nations to global markets. Leveraging Iran’s strategic location at the crossroads of Asia, Europe, and the Middle East, these transit services enhance connectivity, reduce transit times, and open new opportunities for economic collaboration. This article explores how Iran’s infrastructure and geographic advantages contribute to strengthening trade ties with CIS countries, while addressing the challenges that influence this vital transit corridor.