Sheilyn is a very rare girls' name that peaked in 2009 and remains in steady use.
Sheilyn is a girl name. In 2025 it ranked #11,783 for girl births in the United States (and #19,786 across all names), given to 8 babies. Sheilyn was first reported in SSA data in 2003 and peaked in 2009 (14 births).
Girls named Sheilyn per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2003–2025 · 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