Ignace Lilien (often stylized as Ignacy Lilien) was a Polish-Jewish composer and conductor, active primarily in the early 20th century. Born in 1885 in Warsaw, Lilien became known for his contributions to classical music, particularly in the realm of orchestration and choral works. His compositions often incorporated elements of Jewish folk music, reflecting his cultural heritage. Notable works by Lilien include choral pieces such as "Zemirot" and "Tehilim," which showcase his ability to blend traditional Jewish themes with classical forms. His music is characterized by rich harmonies and lyrical melodies, making it accessible and appealing to a broad audience. Lilien's impact on music is particularly evident in his role as a bridge between Jewish folk traditions and Western classical music. He was a prominent figure in the early 20th-century Jewish music revival, contributing to the preservation and evolution of Jewish musical identity in a time of significant cultural change. His efforts helped pave the way for future generations of composers exploring similar themes, making him a significant figure in the landscape of Jewish classical music. Lilien's work remains appreciated by scholars and performers of Jewish music today.