Rainbow Body is an orchestral composition by the American composer Christopher Theofanidis. It was commissioned by the Houston Symphony, which first performed the work in April 2000 under the conductor Robert Spano. The piece is dedicated to the Texas lawyer and philanthropist Glen Rosenbaum.[1] Rainbow Body is one of Theofanidis's most-performed compositions and won the 2003 London Masterprize competition.[2][3]