Johann C. Altnikol (1822-1900) was a German composer, conductor, and music educator, primarily associated with the Romantic era. He is perhaps best known for his contributions to choral and orchestral music, and he played a significant role in the development of music in the 19th century. Altnikol's notable works include his choral compositions and his contributions to the sacred music repertoire, notably his "Missa in C" and various motets. He also composed symphonic works, chamber music, and songs that reflect the rich harmonic language and emotional depth characteristic of the Romantic style. In addition to his compositions, Altnikol was influential as a music educator, teaching at various institutions and contributing to the training of future musicians. His emphasis on choral music helped to popularize this genre in German-speaking countries. While not as widely recognized as some of his contemporaries, Altnikol's music is appreciated for its melodic inventiveness and structural clarity. His impact on choral and sacred music endures, particularly in the context of church music, where his works are still performed today.