Home › Baby Names Directory › Unknown

Unknown

♂ Boy

Pronounced un-NOHN /ʌnˈnoʊn/High

Meaning: Not known or identified; an administrative placeholder used as a given nameMedium

In 30 seconds: Unknown appears in SSA birth records as a given name — most likely an administrative placeholder entered when the actual name was not provided at the time of registration.
💕 Browse more names
Origin MediumEnglish
MeaningNot known or identified; an administrative placeholder used as a given name
U.S. rank (2024)#3199 ↘ Falling
2024 U.S. births38 boys (0.00% of U.S. boys)
Peak year1954
Total births (all-time)≈ 9,827

Popularity in the U.S. · SSA data

peak 195418802024

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

History & Origin

The word unknown derives from Old English uncnawan, meaning not known or not recognized. As a given name, Unknown almost certainly entered SSA records as a bureaucratic placeholder when parents either did not provide a name at birth registration or when the birth certificate was filed before a name was chosen.

In some U.S. hospital and vital records systems, when a name field is left blank or the infant is called 'Baby Boy' at discharge, a follow-up form may still register as 'Unknown.' In rare cases individuals have legally retained such placeholders as their actual given name. The SSA publishes frequency counts for all names with five or more occurrences, meaning Unknown has appeared enough times in records to qualify.

Did you know? A small number of individuals have Unknown recorded as their legal first name in U.S. vital records — sometimes because a name was not chosen at birth, or because it was never formally updated after initial hospital registration.
Overall data confidence 65%
U.S. Social Security Administration baby name data — source of Unknown as a recorded given nameU.S. vital records documentation — placeholder naming practices in birth registration

Variations

—

Nicknames

—

Famous Bearers

  • Famous bearers coming soon.

If you like Unknown…

Mystery
Cipher

Frequently Asked

What does the name Unknown mean?

Unknown literally means 'not identified.' As a given name, it most likely entered birth records as an administrative placeholder when no name was provided.

How do you pronounce Unknown?

Unknown is pronounced un-NOHN /ʌnˈnoʊn/ — two syllables with stress on the second.

Is Unknown a boy or girl name?

In SSA data, Unknown appears in both male and female records, though it is most frequently recorded for males.

How popular is Unknown?

Unknown is extremely rare as a given name. It appears in SSA records because it meets the minimum threshold of five occurrences, suggesting it has been recorded as a legal first name a handful of times.