Rosaly is a distinctive girls' name in United States, ranking #15014 in 2002 with 6 recorded births. The name reached its all-time peak in 2019 with 25 births ranking #5284. Since 1996, the popularity has decreased by 25.0%. In 2002, approximately 1 in every 299,470 girls born was named Rosaly. RISING Recent data shows the name is currently rising.