Ilsa is a distinctive girls' name in United States, ranking #7411 in 2022 with 15 recorded births. The name reached its all-time peak in 2011 with 34 births ranking #4288. Since 1996, the popularity has decreased by 21.1%. In 2022, approximately 1 in every 109,251 girls born was named Ilsa. RISING Recent data shows the name is currently rising.