Akhnaten is an opera in three acts based on the life and religious convictions of the Egyptian pharaoh Akhenaten, written by the American composer Philip Glass in 1983. The libretto is by Philip Glass in association with Shalom Goldman, Robert Israel, Richard Riddell, and Jerome Robbins. According to the composer, this work is the culmination of a trilogy including his two other biographical operas, Einstein on the Beach and Satyagraha. These three people were all driven by an inner vision which altered the age in which they lived: Akhenaten in religion, Einstein in science, and Gandhi in politics.

Philip Glass is an American composer and pianist. He is widely regarded as one of the most influential composers of the late 20th century. Glass's work has been associated with minimalism, being built up from repetitive phrases and shifting layers. Glass describes himself as a composer of "music with repetitive structures", which he has helped to evolve stylistically.