Loris Tjeknavorian (also spelled Cheknavarian, Armenian: Լորիս Ճգնավորյան; Persian: لوریس چکناواریان‎, born 13 October 1937) is an Iranian Armenian composer and conductor. He is one of the most celebrated cultural figures in Armenia and Iran.

As one of the leading conductors of his generation, he has led international orchestras throughout the world: in Austria, UK, USA, Canada, Hungary, Copenhagen, Iran, Finland, USSR, Armenia, Thailand, Hong Kong, South Africa, Denmark, and Israel.