François de La Croix (c. 1620-1690) was a French composer and organist of the Baroque period, primarily active in the late 17th century. He is best known for his contributions to sacred music, particularly his motets and masses, which reflect the stylistic tendencies of the French Baroque. La Croix served as the organist at the church of Saint-Germain-l'Auxerrois in Paris, where he composed various liturgical works that were influential in the development of French church music. His notable works include "Messes," "Motets," and "Litanies," which showcase his skill in counterpoint and melody, characteristic of the period's sacred music tradition. Although not as widely recognized as some of his contemporaries, such as Marc-Antoine Charpentier or Jean-Baptiste Lully, La Croix's music contributed to the richness of the French Baroque soundscape. His compositions highlight the transition towards more expressive and ornate styles that would influence later composers. La Croix's work remains important for understanding the evolution of sacred music in France, showcasing the interplay between liturgical needs and artistic expression during a significant cultural period.