The baby name Sadao is a Male name , 3 syllables long and is pronounced SAH-dah-oh (Japanese: [sa.da.o]).
Sadao is Japanese in Origin.
The baby name Sadao is a Male name , 3 syllables long and is pronounced SAH-dah-oh (Japanese: [sa.da.o]).
Sadao is Japanese in Origin.
Sadao is a Japanese masculine given name pronounced sah-dah-oh. Its meaning depends on the kanji chosen, with common forms including 貞夫 or 貞雄 (“upright, chaste” + “man/hero”), 定男 (“steadfast/settled” + “man”), and 禎夫 or 禎雄 (“auspicious, blessed” + “man/hero”). Across these spellings, the name carries nuances of rectitude, reliability, and good fortune. It can also be written in kana as さだお or サダオ.
Usage has a traditional feel: Sadao rose to prominence from the late Meiji through early Shōwa eras and is rarer among contemporary newborns, though widely recognized. Notable bearers include jazz saxophonist Sadao Watanabe (渡辺貞夫) and film director Sadao Yamanaka (山中貞雄); actor Sadao Abe stylizes his stage name as サダヲ (“Sadawo”). Romanization is typically Sadao under Hepburn. There are no fixed diminutives, but honorifics like -kun are common; the related feminine name Sadako shares the virtue element 貞.
Based on birth registration data from national statistics agencies.
| Country | Gender | Year | Rank | Born | of |
|---|---|---|---|---|---|
| JP | 0 | #77 | 1 | 4,057 | |
| PT | 0 | #250 | 1 | 4,161 | |
| JP | Boys | 0 | #268 | 30 | 7,909 |
| MY | 0 | #354 | 1 | 12,352 | |
| BR | 0 | #360 | 1 | 5,969 | |
| BD | Boys | 0 | #605 | 1 | 10,045 |
| BO | Boys | 0 | #621 | 2 | 9,244 |
| BR | Boys | 0 | #778 | 8 | 12,213 |
| PE | Boys | 0 | #922 | 5 | 14,506 |
| MX | Boys | 0 | #1,032 | 2 | 16,355 |
| MY | Boys | 0 | #1,181 | 2 | 25,439 |
| MA | 0 | #1,199 | 1 | 20,986 | |
| DZ | 0 | #1,234 | 1 | 20,130 | |
| ZA | Boys | 0 | #1,270 | 3 | 25,619 |
Sadao is popular in 11 countries — most recent births per country:
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