Johann Baptist Lasser (born on December 5, 1828, in Austria; died on January 15, 1895) was a prominent composer and music educator of the 19th century. Primarily associated with the Romantic genre, Lasser is best known for his contributions to choral and orchestral music, as well as his pedagogical works that influenced music education in Austria. His notable works include various choral compositions and orchestral pieces, with a significant emphasis on liturgical music. Lasser’s compositions often reflect the emotional depth and melodic richness characteristic of the Romantic era, making them popular among choirs and orchestras of his time. In addition to his compositional output, Lasser had a considerable impact on music through his role as a teacher. He served as a professor at the Vienna Conservatory, where he trained many aspiring musicians and composers, thus contributing to the development of the next generation of classical music in Austria. Though not as widely recognized today, Lasser's influence on choral music and his commitment to music education have left a lasting legacy in the Austrian musical landscape of the 19th century.