MallowbyNames

Isidor

IZ-uh-dor · Gift of Isis

2025 rank (boys)
#9,714
Babies named in 2025
7
Peak popularity
1892
2025 frequency
1 in 244,011 boys
Usually for
Boys
Trend
Rising since 2021

A 1890s favorite, climbing again.

Popularity of Isidor since 1883

Babies named Isidor per year in U.S. Social Security records. Raw births topped out in 1914, but relative to how few babies were recorded back then, Isidor's real moment was 1892.

81624192019602000Most births 1914Boys
Data table (by decade)
DecadeBoys
1880s18
1890s36
1900s22
1910s160
1920s67
1930s36
1940s6
1950s33
1960s6
1970s0
1980s0
1990s0
2000s0
2010s5
2020s30

Meaning & origin

Isidor is a name with deep historical and religious roots. It peaked in popularity in the United States in 1892, during its strongest decade, the 1890s. After decades of low usage, the name has been on a rising trajectory since 2021, making it a rare but recognized choice. Its earliest recorded U.S. appearance dates back to 1883.

From the Greek name Isidoros, derived from Isis, the Egyptian goddess, and doron, meaning 'gift'. The name was borne by several early Christian saints, and was common in the Byzantine Empire and later among Jews in Europe.

Nicknames & variants

Nicknames: Izzy, Isy

Variants: Isidore, Isidoro, Ishod

Sibling names for Isidor

Names that share Isidor's style, for a brother or sister.

Sisters: Ida, Ella, Mina, Rosa, Clara

Brothers: Oscar, Leo, Felix, Hugo, Julius

A parent animal hugging its little one, the personalized name page

I is for Isidor, our favorite little boy.

I is for Isidor…”

In a Mallowby alphabet book, Isidor's letter becomes Isidor's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Isidor's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Isidor mean?
Isidor means 'gift of Isis', referring to the ancient Egyptian goddess.
How popular is the name Isidor currently?
As of 2025, Isidor ranks 9714 in the United States, with 1 in 244,011 newborns given the name.
Is Isidor a boy or girl name?
Isidor is almost exclusively a boy's name.