Rosaly is a distinctive girls' name in United States, ranking #12124 in 1998 with 7 recorded births. The name reached its all-time peak in 2019 with 25 births ranking #5284. Since 1996, the popularity has decreased by 12.5%. In 1998, approximately 1 in every 252,413 girls born was named Rosaly. RISING Recent data shows the name is currently rising.