boy's name
Isadore
- Gender Boy
- Syllables 4
- Letters 7
- Popularity Rare
- Births on record 5,914
Isadore is a boy's name with 4 syllables. In 2025 it was given to 15 babies in the United States. It is a rare choice.
- Peaked in 1916, when 285 babies were given the name.
- After peaking in the 1910s it fell out of use, and is now climbing again — a classic revival.
- Today about 1 in 221,043 babies in the United States is given this name.
- 4 syllables, with the stress on syllable 3.
Isadore 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 | 104 |
| 1890s | 198 |
| 1900s | 376 |
| 1910s | 2,045 |
| 1920s | 1,385 |
| 1930s | 443 |
| 1940s | 295 |
| 1950s | 271 |
| 1960s | 170 |
| 1970s | 131 |
| 1980s | 90 |
| 1990s | 82 |
| 2000s | 92 |
| 2010s | 122 |
| 2020s (to 2025) | 105 |
How popular is Isadore?
In 2025, Isadore was given to 15 babies in the United States. It is a rare choice.
Where Isadore 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 Isadore
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Isadore also like
Names whose popularity has risen and fallen in step with Isadore over the last century — the same taste, a different name.
Sibling names for Isadore
Names from the same era that won't rhyme or share an initial with Isadore — the two things that make a sibling set grate.
Common questions about Isadore
How popular is the name Isadore?
In 2025, Isadore was given to 15 babies in the United States. It is a rare choice.
Is Isadore a girl's or a boy's name?
Isadore is given almost entirely to boys in birth records.
How many syllables are in Isadore?
Isadore has 4 syllables.
When was Isadore most popular?
Isadore peaked in 1916, when 285 babies were given the name. After peaking in the 1910s it fell out of use, and is now climbing again — a classic revival.
Is Isadore a good name?
That is not something records can settle, but they can tell you what you would be choosing. Isadore currently ranks #5,994 in the United States. After peaking in the 1910s it fell out of use, and is now climbing again — a classic revival. Everything else — how it sounds with your surname, who it reminds you of — is yours.