Louisa is a moderately popular girls' name in England & Wales, ranking #328 in 2011 with 146 recorded births. The name reached its all-time peak in 2007 with 263 births ranking #201. Since 1996, the popularity has decreased by 37.9%. In 2011, approximately 1 in every 2,201 girls born was named Louisa. RISING Recent data shows the name is currently rising.