Johann Weichmann (circa 1640–after 1700) was a German composer and musician known for his contributions to the baroque music scene in Germany. His works predominantly fall within the realm of sacred music, characterized by intricate counterpoint and expressive melodies typical of the period. Weichmann is best known for his collections of sacred vocal music, particularly his motets and hymns. His most notable work includes the collection "Musica sacra," which features a variety of settings for choir and organ, showcasing his ability to blend lyrical beauty with theological depth. His compositions often reflect the stylistic influences of contemporaneous composers, such as Heinrich Schütz and Michael Praetorius. While Weichmann may not be as widely recognized as some of his contemporaries, his contributions to the development of German church music in the late 17th century have been acknowledged for their quality and significance. His works are occasionally performed and studied in the context of baroque sacred music, illustrating the rich musical heritage of the period and the evolution of choral traditions in Germany.