Radical Light is a single-movement orchestral composition by the American composer Steven Stucky. The work was commissioned by the Los Angeles Philharmonic with contributions from Lenore and Bernard Greenberg. It was premiered October 18, 2007 at the Walt Disney Concert Hall in Los Angeles, with conductor Esa-Pekka Salonen leading the Los Angeles Philharmonic. The title of the piece comes from the poem "He Held Radical Light" by A. R. Ammons.