Thailyn is a very rare girls' name that peaked in 2011 and has since faded.
Thailyn is predominantly a girl name. In 2025 it ranked #14,769 for girl births in the United States (and #24,458 across all names), given to 6 babies. Thailyn was first reported in SSA data in 2001 and peaked in 2011 (9 births).
Girls named Thailyn per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2001–2025 · 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 Thailyn
Boys named Thailyn per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2001–2025 · 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