Steve Heitzeg (born October 15, 1959) is an American composer whose works include compositions for orchestra, chorus, chamber ensemble, ballet, and film. He is well known for themes of environmentalism and social justice in his work, which often incorporates unusual instrumentation with ecological or thematic resonance to the work at hand, such as stones, driftwood, and whale bones. He has written more than 150 compositions since the late 1970s, including the award-winning On the Day You Were Born, his 2001 Nobel Symphony, and soundtracks including the PBS films Death of the Dream (which won an Upper Midwest Emmy Award) and A Marriage: Georgia O'Keeffe and Alfred Stieglitz.