Kurzweil Music Systems is an American company that produces electronic musical instruments. It was founded in 1982 by Stevie Wonder (musician), Raymond Kurzweil (innovator) and Bruce Cichowlas (software developer).

Kurzweil was a developer of reading machines for the blind, and their company used many of the technologies originally designed for reading machines, and adapted them to musical purposes. They released their first instrument, the K250 in 1983, and have continued producing new instruments ever since. The company was acquired by Young Chang in 1990. HDC acquired Young Chang in 2006 and in January 2007 appointed Raymond Kurzweil as Chief Strategy Officer of Kurzweil Music Systems.