Morton Subotnick (born 1933) is an American composer and a pivotal figure in the birth of American electronic music, closely associated with Don Buchla and the development of the West Coast synthesis philosophy.

Subotnick co-founded the San Francisco Tape Music Center and commissioned Don Buchla to build a voltage-controlled instrument designed for live performance rather than studio tape manipulation — a brief that directly shaped the Buchla 100 series modular synthesizer.

His 1967 album "Silver Apples of the Moon," released on Nonesuch Records, was the first electronic music commission for a major label and introduced modular synthesis to a broad audience. Subotnick's music emphasized timbral evolution, gestural control, and real-time performance — values embedded in Buchla's touch-plate and multi-segment envelope designs.

As an educator and composer, Subotnick continued exploring interactive electronic media for decades, influencing generations of electronic musicians beyond the instrument industry itself.

Notable products: Buchla 100 series (commissioned design), Silver Apples of the Moon.