Roslynn is a distinctive girls' name in United States, ranking #4242 in 2020 with 33 recorded births. The name reached its all-time peak in 2014 with 47 births ranking #3409. Since 1996, the popularity has increased by 230.0%. In 2020, approximately 1 in every 48,955 girls born was named Roslynn. RISING Recent data shows the name is currently rising.