Louisa is a moderately popular girls' name in England & Wales, ranking #175 in 1998 with 248 recorded births. This places Louisa in the top 4% of ranked UK girls' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2007 with 263 births ranking #201. In 1998, approximately 1 in every 1,166 girls born was named Louisa. RISING Recent data shows the name is currently rising.