Rosaly is a distinctive girls' name in United States, ranking #9776 in 2004 with 11 recorded births. The name reached its all-time peak in 2019 with 25 births ranking #5284. Since 1996, the popularity has increased by 37.5%. In 2004, approximately 1 in every 166,920 girls born was named Rosaly. RISING Recent data shows the name is currently rising.