Autumnn is a very rare variant of Autumn that peaked in 2017 and has grown less common since.
Autumnn is a girl name. In 2025 it ranked #13,401 for girl births in the United States (and #22,329 across all names), given to 6 babies. Autumnn was first reported in SSA data in 1993 and peaked in 2017 (7 births).
Girls named Autumnn per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 1993–2025 · 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