Rosaly is a distinctive girls' name in United States, ranking #5202 in 2025 with 25 recorded births. The name reached its all-time peak in 2019 with 25 births ranking #5284. Since 1996, the popularity has increased by 212.5%. In 2025, approximately 1 in every 64,291 girls born was named Rosaly. RISING Recent data shows the name is currently rising.