boy's name
Casimiro
- Gender Boy
- Syllables 4
- Letters 8
- Popularity Rare
- Births on record 1,114
Casimiro is a boy's name with 4 syllables. In 2025 it was given to 6 babies in the United States. It is a rare choice.
- Peaked in 1921, when 28 babies were given the name.
- Its usage has held steady over the past decade.
- Today about 1 in 552,792 babies in the United States is given this name.
- First appears in US birth records in 1881.
- 4 syllables, with the stress on syllable 3.
Casimiro over time
Births per decade in the United States, 1880s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1880s | 6 |
| 1910s | 78 |
| 1920s | 170 |
| 1930s | 113 |
| 1940s | 96 |
| 1950s | 115 |
| 1960s | 98 |
| 1970s | 104 |
| 1980s | 103 |
| 1990s | 73 |
| 2000s | 74 |
| 2010s | 27 |
| 2020s (to 2025) | 27 |
How popular is Casimiro?
In 2025, Casimiro was given to 6 babies in the United States. It is a rare choice.
Where Casimiro is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
Names that peaked alongside Casimiro
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Casimiro also like
Names whose popularity has risen and fallen in step with Casimiro over the last century — the same taste, a different name.
Sibling names for Casimiro
Names from the same era that won't rhyme or share an initial with Casimiro — the two things that make a sibling set grate.
Common questions about Casimiro
How popular is the name Casimiro?
In 2025, Casimiro was given to 6 babies in the United States. It is a rare choice.
Is Casimiro a girl's or a boy's name?
Casimiro is given almost entirely to boys in birth records.
How many syllables are in Casimiro?
Casimiro has 4 syllables.
When was Casimiro most popular?
Casimiro peaked in 1921, when 28 babies were given the name. Its usage has held steady over the past decade.
Is Casimiro a good name?
That is not something records can settle, but they can tell you what you would be choosing. Casimiro currently ranks #11,190 in the United States. Its usage has held steady over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.