Declynn is a very rare variant of Declan that peaked in 2021 and remains in steady use.
Declynn is predominantly a girl name. In 2025 it ranked #9,610 for girl births in the United States (and #16,306 across all names), given to 10 babies. Declynn was first reported in SSA data in 2011 and peaked in 2021 (23 births).
Girls named Declynn per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2011–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here
Boys named Declynn
Boys named Declynn per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2011–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here