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Isadore

#5,960 in 2025Boys' name

Possibly gift of (the goddess) Isis, through Isidore

Isadore has been given to 5,909 babies in the U.S. since 1880. In 2025 it ranked #5,960 of 13,926 boys’ names in use. Its peak year was 1916, with 273 recorded.

Babies named Isadore, 2025

1 in 221,000

Isadore over time, 1880–2025

BoysGirls
010020030018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Isadore: meaning, origin, and history

Possibly gift of (the goddess) Isis, through Isidore

Ancient Greek

What Isadore means

Isadore belongs to the name family reached through Isadore → Isidore. Its meaning is “gift of (the goddess) Isis”.

Dictionary etymologyReferences, data & attribution

A non-standard variant of Isidore, possibly inspired by the well-known feminine variant Isadora of Isidora.

Excerpt from Wiktionary: Isadore (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Isadore is used in English. Its origins include Ancient Greek.

Related names and everyday forms

Related names include Isidore.

Pronunciation and spelling

In English, Isadore is pronounced /ˈɪzədɔɹ/.

American usage and historical context

In the United States, 5,714 boys were recorded with the name Isadore between 1880 and 2025. Its highest annual count was 273 in 1916; its best national rank was #274 in 1913.

Over 5 years its rank fell, from #4,924 in 2020 to #5,960 in 2025. Over 10 years its rank rose, from #7,699 in 2015 to #5,960 in 2025.

In the United States, 195 girls were recorded with the name Isadore between 1885 and 2024. Its highest annual count was 14 in 1917; its best national rank was #1,115 in 1885.

How common is Isadore?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 221,000
15 of 3,315,165 births
Among boys only
1 in 114,000
<0.01% of boys
Rank, 2025
#5,960
of 13,926 boys’ names in use
Coin-flip room size
153,194 kids
Even odds of a second one

Where Isadore sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 153,194 children born in 2025 and it's an even bet that one of them is another Isadore. In a class of 30 the chance is Under 1%.

When Isadores were born

Half of everyone ever recorded as Isadore was born before 1921 — so the typical Isadore is around 104 today.

Median birth year
1921
About 104 years old
Biggest decade
1910s
34.7% of all use
Born in the last 25 years
4.6%
Mostly a past generation
Recorded since 1950
1,015
People you could plausibly meet
Choose a decade

1910s — 34.7% of all recorded uses (1,980).

Is Isadore rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
+2,634
Places climbed
Rank vs 5 years ago
−1,036
Places dropped
Rank vs 10 years ago
+1,739
Places climbed
Births vs 10 years ago
1.50×
More babies than then
Share of its own peak
5.5%
Peak was 1916 (273)
Years since peak
109
Years
Year-to-year steadiness
Shifting
22.2% average annual change
Best rank ever
#274
1913

Spellings of Isadore

Isadore is the most-used spelling, taking 54.8% of the 10,427 babies given a near-identical spelling.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Isadore is used

Across 1910–2025, Isadore was most concentrated in Pennsylvania — about 1 in 14,286 boys, against 1 in 44,298 across all states with data. It was least common in Texas (1 in —).

07 per 100,000

Most concentrated

  1. 1Pennsylvania1 in 14,286
  2. 2New York1 in 20,000
  3. 3Massachusetts1 in 25,000
  4. 4New Jersey1 in 25,000
  5. 5Illinois1 in 33,333
  6. 6Louisiana1 in 33,333
  7. 7Maryland1 in 33,333
  8. 8Connecticut1 in 50,000

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Isadore has too little recent state data to map, so this covers all years from 1910.

Isadore around the world

Where Isadore ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • Canada
    2019–2019
    #2,943
    in 2019

Popularity data from Statistics Canada. StatCan data under Statistics Canada Open Licence.

Notable people named Isadore

People whose public names include Isadore, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Isadore in other languages

Cross-language forms and variants of Isadore. Linked forms have their own page here.

IsidoreIsidorosIsidorus

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Isadore by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#5,960
Trend vs 5 yrs ago
Down 1,036
Best rank ever
#274
1913
Peak year
1916
273 that year
First recorded
1880
Last recorded
2025
All-time count
5,714
Count in 2025
15

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#1,115
1885
Peak year
1917
14 that year
First recorded
1885
Last recorded
2024
All-time count
195
Count in 2025
Under 5

Names similar to Isadore

Matched on shared beginnings and endings, similar length, and comparable popularity.

IsidoreIsaakIsaiasIsaelTheadoreIsaiIsaccIsayahIsacIsaihIsaihaIsabelIsaiahsIsauroIsaElmoreIsaiyahIsakIsandroIsaiaThedoreIsaackGilmoreIsabella

Names with a curve like Isadore

Not spelling — timing. These names rose, peaked and faded in the same years as Isadore, so they read as being from the same moment even when they look nothing alike.

HymanAloysiusSigmundCasimirEllsworthMeyerSolWaldoAbeAlbinOrvalGustave

Sibling names for Isadore

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Isadore

Top names of 1916, Isadore's peak yearThe 1910s in fullOther names that peaked in 1913More old man namesBoys' names starting with I