Hildegard Westerkamp (born April 8, 1946, in Osnabrück, Germany) is a German and Canadian composer of contemporary music, and a professor at Simon Fraser University in Vancouver, Canada. Many of her compositions deal with the acoustic environment. Particular themes include soundscapes of urban or rural areas, including voices, noise, silence, music and media, and so on. In several of these compositions, she incorporates the poetry of her then-partner, Canadian writer Norbert Ruebsaat.