Declyn is a distinctive girls' name in United States, ranking #4571 in 2020 with 29 recorded births. This places Declyn in the top 26% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 30 births ranking #4586. In 2020, approximately 1 in every 55,707 girls born was named Declyn. STABLE Recent data shows the name is currently stable.