Justin Heinrich Knecht (1752–1817) was a German composer, conductor, and music educator, notable for his contributions to choral music and early Romantic music. He is primarily associated with the genres of classical and choral music. Knecht was a proponent of the "Hallelujah" style, which emphasized the emotional expressiveness of sacred music. His most significant works include the oratorio "Die Auferstehung und die Freude" (The Resurrection and Joy) and various choral settings that reflect his innovative approach to harmony and melody. He also composed numerous hymns and liturgical music, which were widely used in Protestant church services. Knecht's impact on music is particularly evident in his role as a music educator, as he influenced the development of music instruction in Germany. He emphasized the importance of music theory and practice, which contributed to the advancement of music education. Though not as widely recognized as some of his contemporaries, Knecht's work laid groundwork for future composers and educators, marking him as an important figure in the transition from the Baroque to the Romantic musical eras.