Joseph Johann Michael Starzer (baptised 5 January 1726 – 22 April 1787) was an Austrian composer and violinist of the pre-classical period. He was active in Moscow, St. Petersburg and Vienna.
Starzer contributed to the formation of the Vienna Tonkünstler-Societät in 1771. With Georg Christoph Wagenseil and Matthias Georg Monn was a precursor of the First Viennese School. Starzer composed: several ballets, symphonies, concerts, the Siengspiel Die drei Pächter, and other orchestral works and chamber music.