Marie-Juliette Olga "Lili" Boulanger was a French composer and the first female winner of the Prix de Rome composition prize. Her older sister was the noted composer and composition teacher Nadia Boulanger.

Juliette Nadia Boulanger was a French music teacher, conductor and composer. She taught many of the leading composers and musicians of the 20th century, and also performed occasionally as a pianist and organist.