Unknown
Unknown was the 2757th most popular name for boys in 2025, given to 47 babies. Its best year was 1954, when it ranked 308th with 548 babies. Over the last ten years it has moved down 506 places. More babies were named Unknown in the 1950s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #2,757 boys, down 497 places since 2020
- Babies in 2025
- 47boys
- Girls and boys
- 41% girls, 59% boys2021–2025
- Peak year
- 1954548 babies
- Total since 1880
- 19,714babies recorded
Unknown popularity since 1880
| Year | Rank (girls) | Rank (boys) | Babies (girls) | Babies (boys) |
|---|---|---|---|---|
| 2025 | #3,293 | #2,757 | 48 | 47 |
| 2020 | #3,603 | #2,260 | 42 | 61 |
| 2010 | #2,751 | #1,724 | 65 | 89 |
| 2000 | #3,267 | #2,475 | 42 | 39 |
| 1990 | #1,092 | #738 | 162 | 192 |
| 1980 | #9,062 | #4,475 | 7 | 9 |
| 1970 | #3,569 | #1,295 | 18 | 42 |
| 1960 | #925 | #564 | 133 | 194 |
| 1950 | #348 | #336 | 511 | 404 |
| 1940 | #1,894 | #3,439 | 19 | 6 |
| 1930 | #3,036 | #2,284 | 10 | 13 |
| 1920 | #3,571 | #1,956 | 9 | 18 |
| 1910 | — | #924 | — | 13 |
| 1900 | #1,005 | #648 | 15 | 16 |
| 1890 | #1,195 | #1,151 | 7 | 5 |
| 1880 | — | #1,049 | — | 5 |
How popular is Unknown, counting every spelling?
Unknown has no other common spelling that sounds the same.
How many kids will share the name Unknown?
47 of the 3,606,400 babies born in the US in 2025 were named Unknown (0.01 per 1,000 births). For a boy named Unknown born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 179 (of 430 pupils) would have a child named Unknown.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Unknown?
About 7,100 people born in the US named Unknown are alive today, with a median age of 61; half are between 31 and 72. That makes Unknown a name most people associate with older generations. The wide spread shows a name popular in two different eras.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Unknown by state
How common Unknown was among boys born in each state in 2021–2025. It is notably more common than nationally in Oregon (49.2×), Michigan (4.8×), North Carolina (4.4×). In 45 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Unknown: their share of US boys followed the most similar curve since 1880. If you like Unknown, they share its era and feel.
Questions about the name Unknown
How popular is the name Unknown?
Unknown was the 2757th most popular name for boys in 2025, given to 47 babies. Its best year was 1954, when it ranked 308th with 548 babies. Over the last ten years it has moved down 506 places. More babies were named Unknown in the 1950s than in any other decade.
Is Unknown a boy or girl name?
In 2021–2025, 41% girls, 59% boys given the name Unknown in the US.
Where is Unknown most popular?
In 2021–2025, Unknown was most common in Oregon (1.94 per 1,000 boys), followed by Michigan and North Carolina.