Rosaly is a distinctive girls' name in United States, ranking #6631 in 2021 with 18 recorded births. The name reached its all-time peak in 2019 with 25 births ranking #5284. Since 1996, the popularity has increased by 125.0%. In 2021, approximately 1 in every 91,095 girls born was named Rosaly. RISING Recent data shows the name is currently rising.