Cassiopeia
Cassiopeia was the #8,860 girls' name in the US in 2025 (11 babies), and #5,927 in England & Wales.
Cassiopeia as a girl’s name
- US
- England & Wales
- Canada
Show the numbers
| Year | US | England & Wales | Canada |
|---|---|---|---|
| 2025 | #8,860 (11) | #5,927 (3) | — |
| 2024 | #8,443 (12) | — | — |
| 2023 | #6,409 (18) | #4,057 (5) | — |
| 2022 | #6,464 (18) | #5,670 (3) | — |
| 2021 | #6,967 (16) | #3,961 (5) | — |
| 2020 | #9,546 (10) | — | — |
| 2019 | #9,112 (11) | #3,541 (6) | — |
| 2018 | #8,617 (12) | #3,178 (7) | — |
| 2017 | #9,943 (10) | — | #2,876 (6) |
| 2016 | #12,876 (7) | — | — |
| 2015 | #10,866 (9) | #3,615 (6) | — |
| 2014 | #8,966 (12) | — | — |
| 2013 | #16,547 (5) | — | — |
| 2012 | #16,869 (5) | #5,876 (3) | — |
| 2011 | #16,764 (5) | — | — |
The tide so far
- Peaked in the US in 2022 at #6,464.
- Holding steady over the last five years.
- First recorded in the US in 1979.
How common is it?
about 1 in 140,000 baby girls in the published US list for 2025.
In a group of 1,000 children born that year, you would expect to meet fewer than 1. How we work this out.
How common, country by country
| Where | Sex | Latest year | Share | Verdict |
|---|---|---|---|---|
| US | Girls | 2025 | about 1 in 140,000 | rare |
| England & Wales | Girls | 2025 | about 1 in 83,000 | rare |
Next year
On its recent trend, Cassiopeia is likely to keep falling in the US in 2026: about 1 in 160,000 baby girls. Likely range 1 in 110,000 to 1 in 220,000.
Estimate, not an official figure. How we estimate.
Spellings
Official statistics count each spelling separately, so we show them side by side rather than adding them up.
| Spelling | Where | Sex | Latest rank | Babies |
|---|---|---|---|---|
| Cassiopeia | Canada | Girls | — | too few |
| Cassiopeia | England & Wales | Girls | #5,927 | 3 |
| Cassiopeia | Northern Ireland | Girls | — | too few |
| Cassiopeia | US | Girls | #8,860 | 11 |