Christopher Knowles (born 1959) is an American poet and painter. He was born in New York City and has received a diagnosis of possible brain damage. He is often referred to as autistic. In 1976, his poetry was used by Robert Wilson for the avant-garde minimalist Philip Glass opera, Einstein on the Beach. Wilson describes his discovery of the then 13-year-old Knowles in the extended notes to the Tomato Records release of Einstein on the Beach:

In early 1973 a man ... gave me an audio tape ... I was fascinated. The tape was entitled "Emily Likes the TV". On it a young man's voice spoke continuously creating repetitions and variations on phrases about Emily watching the TV. I began to realize that the words flowed to a patterned rhythm whose logic was self-supporting. It was a piece coded much like music. Like a cantata or fugue it worked with conjugations of thoughts repeated in variations;

Wilson cast the teenager Knowles in a number of his productions, including Einstein on the Beach.