Louisa is a moderately popular girls' name in England & Wales, ranking #227 in 2006 with 211 recorded births. The name reached its all-time peak in 2007 with 263 births ranking #201. Since 1996, the popularity has decreased by 10.2%. In 2006, approximately 1 in every 1,418 girls born was named Louisa. RISING Recent data shows the name is currently rising.