Tallyn is a very rare name used for both girls and boys that peaked in 2007 and has since faded.
Tallyn is predominantly a girl name. In 2025 it ranked #17,014 for girl births in the United States (and #28,133 across all names), given to 5 babies. Tallyn was first reported in SSA data in 1999 and peaked in 2007 (10 births).
Girls named Tallyn per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 1999–2025 · 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 Tallyn
Boys named Tallyn per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 1999–2025 · 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