Man of prayer or full of goodness
Declin is a rare variant of the Irish name Declan. It is most famously associated with Saint Declan of Ardmore, who was one of the early Christian missionaries to Ireland preceding Saint Patrick.
Fewer than 5 boys were named Declin in 2025.
Early Irish saint and missionary
US births per 5-year period, 1990–present (SSA data).
