Louisa is a distinctive girls' name in United States, ranking #1221 in 2011 with 197 recorded births. The name reached its all-time peak in 2021 with 424 births ranking #687. Since 1996, the popularity has increased by 52.7%. In 2011, approximately 1 in every 8,928 girls born was named Louisa. RISING Recent data shows the name is currently rising.