Rouben Abrahamian, born Ṛubēn Tʻadēosi Abrahamyan (Armenian: Ռուբեն Թադեւոս Աբրահամյանը, b. Gnishik 1881 - d. Yerevan 1951) was an Armenian Iranologist, linguist and translator.
Rouben Abrahamian was born as Ṛubēn Tʻadēosi Abrahamyan in 1881 in the village of Gnishik in the Vayots Dzor Province of Armenia (then part of the Russian Empire). He received his secondary education in Etchmiadzin and Yerevan, and then moved abroad for higher education in a number of places. First, he studied at the Faculty of History and Philogy at the Kiev University (1907), then at Leipzig University (1909), and then at the Saint Petersburg State University (1911). After his academic spell in Europe, he returned and started teaching Russian, linguistics, and classical philosophy in Yerevan. Between 1912 and 1921, he taught in Tiflis (Tbilisi), as well as at other schools in the Caucasus region. In 1921, he moved to neighboring Iran and taught for many years at various Armenian schools in Tabriz, New Julfa, and Tehran.
During his time in Tehran, as the Encyclopaedia Iranica states, Abrahamian served as the principal of a large Armenian school. At the same time, he also began his study of ancient and modern Persian. Some time later, he once again travelled to Europe for educational matters, and in 1935, he received his doctorate in philology from the Sorbonne University in Paris (nowadays University of Paris). He wrote his graduation thesis on the Judeo-Persian dialects of Judeo-Isfahani and Judeo-Hamadani. As his biographer Jennifer Manoukian mentions, his interest for this topic stemmed from the time he translated the works of the 11th-century Iranian poet Baba Tahir into Armenian. Abrahamian's work on this matter was pivotal, for he found important commonalities between the language used in Baba Tahir’s poems and the Jewish dialects of the Iranian cities of Hamadān and Isfahan. His findings on behalf of Baba Tahir and the Jewish dialects were published in the following year under the title of Dialectologie iranienne: dialectes des Israélites de Hamadan et d’Ispahan et dialecte de Baba Tahir.