Unknown
The Story of Unknown
As a girl name
The earliest SSA record of Unknown as a girl name dates back to 1886, when 5 babies received it. 1954 was its biggest year on record, with 644 newborns named Unknown — #336 in the national rankings. The 1950s were its strongest decade, accounting for roughly 48% of all recorded Unknowns. In the latest 2026 data it stands at #3,734 among girl names with 41 births, gradually falling (-15%). In total, more than 10K Unknowns have been born in the U.S. since records began in 1880, spanning the 1880s through the 2020s.
As a boy name
American parents first put Unknown on the record books as a boy name in 1880, with 5 registered babies. Its peak popularity came in 1954, when 549 Unknowns were born — ranking #308 that year. The 1950s were its strongest decade, accounting for roughly 42% of all recorded Unknowns. In the latest 2026 data it stands at #2,683 among boy names with 49 births, falling sharply (-20%). In total, more than 10K Unknowns have been born in the U.S. since records began in 1880, spanning the 1880s through the 2020s.
Popularity Over Time
Popularity by State
Names that sound like Unknown
Phonetically similar names — useful when Unknown is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.
- Unmown
- Unknow
- Unman
- Onion
- Unknowing
- Inman
- Unshown
- Unsown
- Unsewn
- Unin
- Unwon
- Unan
Source: Datamuse . Phonetic similarity ranking, not curated.
Frequently Asked Questions about Unknown
What does the name Unknown mean?
How popular is Unknown in 2026?
When was Unknown most popular?
In which U.S. states is Unknown most popular?
Is Unknown a unisex name?
What names go well with Unknown?
About the name Unknown
Unknown is a unisex baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1880 and has accumulated 10K births in the dataset. Unknown's peak popularity came in 1954 when it ranked #308. Use the chart and map above to compare Unknown's trajectory across years and U.S. states, or browse the related names section to discover similar choices.
Continue exploring
- Top names of 1954 →
- Names of the 1950s →
- Names starting with "U" →
- Browse all boy names →
- Top names of 2026 →
- Browse unisex names →
Data sources
- Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
- Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
- Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
- Predicted nationality distribution — Nationalize.io .
- Phonetically similar names — Datamuse .
Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.