Saint Romain of Saint-Denis was a 6th-century Christian saint and the first abbot of the Abbey of Saint-Denis, located near Paris, France. He is known for his role in establishing the monastic community and promoting the Christian faith in the region. His leadership helped to shape the early development of monasticism in France. Romain is often associated with the Merovingian dynasty, which ruled over the Franks during this period. His feast day is celebrated on January 23, and he is venerated in various Christian traditions. The Abbey of Saint-Denis later became a significant site for royal burials and a center of art and culture.