Jean-Baptiste Rey (1780–1835) was a French composer and pianist, primarily associated with the classical and early Romantic music genres. He is best known for his contributions to piano music, chamber works, and operas. Rey’s notable compositions include several piano sonatas, duets, and a variety of chamber pieces that showcase his melodic and harmonic inventiveness. Rey’s music often reflected the transition from the classical style of composers like Mozart and Haydn to the more emotive and expressive characteristics of the Romantic era. His works, though not as widely recognized today, were well-received during his lifetime and contributed to the development of piano technique and expression. Though Rey’s impact on the broader musical landscape may not be as pronounced as that of his contemporaries, he played a role in the evolution of piano music in the early 19th century. His contributions helped pave the way for later composers who would further explore the expressive capabilities of the piano. Today, Rey is appreciated for his inventive compositions, which offer insight into the musical trends of his time.