Claudio Casciolini (c. 1660–1715) was an Italian composer and organist, primarily associated with the Baroque genre. He is best known for his sacred music, particularly his motets and instrumental works. Notable compositions include a collection of motets published in 1700, which reflect the stylistic characteristics of the early Baroque period, combining intricate vocal lines with rich harmonies. Casciolini served as the organist at several prominent churches in Rome, and his works contributed to the development of Roman Baroque music. His impact on music is noted in his influence on the sacred music repertoire, and he is often recognized for his role in the transition from earlier polyphonic traditions to the more expressive Baroque style. While not as widely known as some of his contemporaries, his contributions helped shape the musical landscape of his time.