Arménský hudební skladatel, od roku 1959 žil v Moskvě.
Pseudonymy: Dzhon Gurgenovich Ter Tatevosian, Hovhannes Gurgeni Ter T& 39at&, Hovannes Gurgeni Ter Tatevosyan, Jivan Gurgeni Ter T& 39adevosyan, Jivan Gurgeni Ter T& 39at&, Dzhon Ter Tatevosyan, John Gurgen Ter Tatevosyan