boy's name
Isidor
- Gender Boy
- Letters 6
- Popularity Rare
- Births on record 509
Isidor is a boy's name. In 2025 it was given to 7 babies in the United States. It is a rare choice.
- Peaked in 1914, when 24 babies were given the name.
- It is a recent arrival in the birth records.
- Today about 1 in 473,709 babies in the United States is given this name.
- First appears in US birth records in 1883.
Isidor 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 | 18 |
| 1890s | 36 |
| 1900s | 22 |
| 1910s | 160 |
| 1920s | 67 |
| 1930s | 36 |
| 1940s | 6 |
| 1950s | 33 |
| 1960s | 6 |
| 2010s | 5 |
| 2020s (to 2025) | 30 |
How popular is Isidor?
In 2025, Isidor was given to 7 babies in the United States. It is a rare choice.
Where Isidor 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 Isidor
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Isidor also like
Names whose popularity has risen and fallen in step with Isidor over the last century — the same taste, a different name.
Sibling names for Isidor
Names from the same era that won't rhyme or share an initial with Isidor — the two things that make a sibling set grate.
Common questions about Isidor
How popular is the name Isidor?
In 2025, Isidor was given to 7 babies in the United States. It is a rare choice.
Is Isidor a girl's or a boy's name?
Isidor is given almost entirely to boys in birth records.
When was Isidor most popular?
Isidor peaked in 1914, when 24 babies were given the name. It is a recent arrival in the birth records.
Is Isidor a good name?
That is not something records can settle, but they can tell you what you would be choosing. Isidor currently ranks #5,491 in the United States. It is a recent arrival in the birth records. Everything else — how it sounds with your surname, who it reminds you of — is yours.