Louisa is a distinctive girls' name in United States, ranking #1914 in 2000 with 89 recorded births. The name reached its all-time peak in 2021 with 424 births ranking #687. Since 1996, the popularity has decreased by 31.0%. In 2000, approximately 1 in every 20,404 girls born was named Louisa. RISING Recent data shows the name is currently rising.