Rosaly is a distinctive girls' name in United States, ranking #9680 in 2010 with 12 recorded births. The name reached its all-time peak in 2019 with 25 births ranking #5284. Since 1996, the popularity has increased by 50.0%. In 2010, approximately 1 in every 148,111 girls born was named Rosaly. RISING Recent data shows the name is currently rising.