Dallyn is a very rare variant of Dallin that peaked in 2003 and has since faded.
Dallyn is predominantly a boy name. It last appears in U.S. records in 2025. Dallyn was first reported in SSA data in 1992 and peaked in 2003 (17 births).
Boys named Dallyn per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 1992–2025 · 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
Girls named Dallyn · 5 in 2025
Girls named Dallyn per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 1992–2025 · 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