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Isao as a Baby Name. Meaning and Origin of Isao

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The baby name Isao is a Male name , 3 syllables long and is pronounced /i.sa.o/ (Japanese); "EE-sah-oh" (English respelling).

Isao is Japanese in Origin.

Gender: Male
Syllables: 3.0
Origin: Japanese
Pronunciation: /i.sa.o/ (Japanese); "EE-sah-oh" (English respelling)

What is the meaning of the name Isao ?

The baby name Isao is a Male name , 3 syllables long and is pronounced /i.sa.o/ (Japanese); "EE-sah-oh" (English respelling).

Isao is Japanese in Origin.

Isao is a Japanese masculine given name pronounced ee-sah-oh. Its meaning depends on the kanji chosen, often centering on merit and honor: 功 conveys achievement or merit, while 勲 (also written 勳) denotes decorated distinction. Other spellings such as 伊佐夫 or 功男 ("man of merit") also occur. The name may also be rendered phonemically in hiragana (いさお) or katakana (イサオ).

Use surged during Japan’s Shōwa era, when virtue-laden names for boys were especially favored, and it now feels timeless yet slightly vintage. Well-known bearers include composer Tomita Isao, director Takahata Isao, and golfer Aoki Isao, all reinforcing its associations with accomplishment. Romanization is typically Isao, with variation found mainly in kanji choice rather than spelling; diminutives are rare in Japanese, though Isa can appear informally abroad. Related virtue names include Isamu ("courage") and Osamu ("discipline"), and parents often select specific characters to emphasize desired qualities.

Isao has the following similar or variant Names

Famous people with the name Isao

Isao Kimura Actor · Born 1923 · Japan Isao Kimura was a Japanese actor best known for his role as Katsushirō in Akira Kurosawa's classic film 'Seven Samurai'. He also appeared in 'Ikiru' and 'The Bad Sleep Well', showcasing his versatility and talent in Japanese cinema.

Isao – Popularity by country

Based on birth registration data from national statistics agencies.

Country Gender Year Rank Born of
JP 0 #67 11 4,057
PH 0 #110 1 5,607
Switzerland Boys 2024 #135 3 1,769
JP Boys 0 #144 167 7,909
EC Boys 0 #246 1 3,322
TW Boys 0 #253 4 7,111
SG 0 #282 1 11,010
CN Boys 0 #331 1 9,639
PL Boys 0 #340 1 6,459
France Boys 2021 #342 46 2,865
BO 0 #408 1 6,868
ZA 0 #474 1 14,421
RU Boys 0 #526 1 12,621
HK Boys 0 #556 2 12,905
BH 0 #587 1 17,937
BO Boys 0 #621 2 9,244
SG Boys 0 #683 15 17,960
BR Boys 0 #783 3 12,213
United States Boys 2016 #893 5 7,365
PE Boys 0 #923 4 14,506
EG Boys 0 #925 1 15,035
MX Boys 0 #962 21 16,355
IN Boys 0 #1,039 1 16,750
MY Boys 0 #1,176 7 25,439
ZA Boys 0 #1,271 2 25,619
SA Boys 0 #1,691 1 28,008

Isao is popular in 22 countries — most recent births per country:

France
Switzerland
Wallonia, Belgium
BH
BO

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People also ask about Isao

Isao is predominantly a boy's name.
Isao is a 3 syllable name, pronounced /i.sa.o/ (Japanese); "EE-sah-oh" (English respelling).
Common nicknames and spelling variations include Isao (romanization), いさお (hiragana), イサオ (katakana), Common kanji spellings: 功 and 勲.
Across languages, Isao has these equivalents: Victor (Latin, 'winner'), Vincent (Latin, 'conquering'), Merit (approximate by meaning).
Yes — Isao ranked #135 in Switzerland in 2024, and appears in official birth registries across 4 countries.
Isao ranks highest in Switzerland (#135 in 2024).
Isao's popularity is rising significantly. It moved from #398 in 2011 to #342 in 2021 in France.
Yes — 1 notable people named Isao are in our database, including Isao Kimura (Actor).