Man of prayer or full of goodness
Declyn is a modern American spelling variation of the traditional Irish name Declan. It is derived from the Gaelic name Deaglán, famously borne by a 5th-century saint who founded a monastery in Ardmore. While the original is masculine, this 'y' spelling is often used for both boys and girls.
About 22 boys were named Declyn in 2025.
US births per 5-year period, 1990–present (SSA data).
