Ruben Mikaeli Aharonyan[a] (born 24 May 1947) is an Armenian classical violinist.
Born in Riga, Latvia, He has won second prize at the Enescu Competition in Bucharest and the Tchaikovsky Competition in Moscow (1974, second prize).
He is a professor at Yerevan State Conservatory and the first violinist of the Borodin Quartet since 1996.
Aharonyan studied at the Moscow State Conservatory with Yuri Yankelevich, and afterwards became a student of Leonid Kogan.
In 1982 Aharonyan became the artistic director of National Chamber Orchestra of Armenia.