Marcelle de Manziarly (1905-1970) was a French pianist and composer, recognized for her contributions to the early 20th-century classical music scene. She was a prominent figure in the French avant-garde movement and is noted for her work in contemporary classical music and her innovative approach to piano performance. De Manziarly studied under renowned composers such as Nadia Boulanger and made significant contributions to the repertoire of piano music. Among her notable works are pieces that blend traditional classical forms with modernist elements, reflecting her unique style and artistic vision. She was also known for her interpretations of works by contemporaneous composers, including Igor Stravinsky and Olivier Messiaen. Her impact on music extended beyond her compositions; de Manziarly was pivotal in promoting new music and fostering relationships between composers and performers. She was an advocate for women in music during a time when female composers faced significant barriers. Although not as widely recognized today, her legacy continues to inspire musicians and composers interested in the evolution of classical music in the 20th century.