Juan García de Zespedes (c. 1595–c. 1660) was a prominent Spanish composer and music theorist of the early Baroque period. He is best known for his contributions to sacred music and is considered a significant figure in the development of polyphonic choral music in Spain. Zespedes's notable works include his collection "Los dos libros de villancicos" published in 1630, which features villancicos—a popular form of Spanish song often associated with Christmas celebrations. His compositions are characterized by rich harmonies and intricate vocal lines, reflecting the influences of both Spanish and Italian musical styles of the time. In addition to his role as a composer, Zespedes served as a music director at various churches, where he had a substantial impact on the training and development of future musicians. His theoretical writings, including treatises on music theory, contributed to the understanding of music in his era. Zespedes's work helped bridge the transition from Renaissance to Baroque music in Spain, influencing subsequent generations of composers and shaping the musical landscape of the period. His legacy endures as an essential part of Spain's rich musical heritage.