Isadore
Meaninggift of Isis · Greek form of Isidore
- US rank
- #5,861
- Syllables
- 3
- Peak
- #273 in 1913
15 babies were named Isadore in the US in 2025. It has dropped 1,006 places in five years.
Found on lists
Save adds it to your list. Vote moves it up the top voted names.
US births per million boys, 1880–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Isadore you might not know, from US birth records and Wikipedia. Handy for convincing a partner, or a grandparent.
Famous Isadore
Isadore Singer
American mathematician (1924–2021)
Choose Isadore and your child shares a first name with Isadore Singer, an American mathematician. A ready-made answer when someone asks “Isadore, like who?” Isadore Singer's Wikipedia article is available in 34 languages, a good sign of just how widely known they are.
Read about Isadore Singer on Wikipedia (opens in a new tab)Photo: George Bergman, CC BY-SA 4.0 (opens in a new tab), via Wikimedia Commons
- How commonAbout 1 in every 113,636 baby boys born in the US in 2025 was named Isadore, 15 babies in all. In a typical school of 500 kids, your Isadore would very likely be the only one.
- HistoryIsadore has been in use since at least 1880, the first year US birth records were kept. That's 145 years of Isadores, and counting.
- Best yearIt was far more popular in 1913, when it ranked #273. Today it's #5,861, so it could be due a comeback.
- Then vs nowIsadore is 2.1× more common today than it was in 2000. In 2000 it was given to about 1 in 243,902 baby boys; in 2025, about 1 in 113,636.
- TrendIsadore has slipped 1,006 places over the last five years and now sits at #5,861. Good news if you want a familiar name that fewer kids will share.
- MeaningIsadore is a Greek form of Isidore, which means “gift of Isis”.
About the name Isadore
Isadore is a boy name of Greek origin meaning “gift of Isis”. It has 7 letters and 3 syllables, starting with I and ending in “-ore”. US birth records list Isadore for boys from 1880 to 2025, in 143 of those 146 years. Its best year was 1913, when it ranked #273 among boy names. In 2025 it ranked #5,861, with 15 babies.
Origin:Greek names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1880s | 85 | 11,738 boys |
| 1890s | 152 | 6,570 boys |
| 1900s | 255 | 3,920 boys |
| 1910s | 312 | 3,207 boys |
| 1920s | 124 | 8,062 boys |
| 1930s | 42 | 23,821 boys |
| 1940s | 21 | 48,733 boys |
| 1950s | 13 | 74,349 boys |
| 1960s | 8.8 | 113,766 boys |
| 1970s | 7.9 | 125,945 boys |
| 1980s | 4.8 | 206,612 boys |
| 1990s | 4.2 | 237,530 boys |
| 2000s | 4.6 | 216,920 boys |
| 2010s | 5.1 | 196,464 boys |
| 2020s | 8.1 | 123,457 boys |
More Greek boy names
- Boy name: Theodore · gift of God
- Boy name: Mateo · gift of God
- Boy name: Lucas · man from Lucania
- Unisex name: Elias · my God is Yahweh
- Boy name: Sebastian · venerable
- Boy name: Leo · lion
- Boy name: Thomas · twin
- Unisex name: Miles · possibly gracious
Questions about the name Isadore
What does the name Isadore mean?
Isadore means “gift of Isis” in Greek, as a form of Isidore.
What is the origin of the name Isadore?
Isadore has Greek roots in our records. Other Greek names include Theodore, Mateo, Lucas.
Is Isadore a boy or girl name?
Isadore is a boy name.
How popular is the name Isadore?
Isadore ranked #5,861 for US boys in 2025, given to 15 babies. Its best year was 1913 (#273).