MallowbyNames

Sadao

sah-DAH-oh · Of uncertain origin; possibly meaning 'firstborn' in Japanese.

Peak popularity
1926
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Sadao since 1914

Babies named Sadao per year in U.S. Social Security records.

71522192019602000Most births 1926Boys
Data table (by decade)
DecadeBoys
1910s68
1920s140
1930s36
1940s0
1950s0
1960s0
1970s0
1980s0
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Sadao is a Japanese name that first appeared in U.S. records in 1914, with peak usage in 1926. It has never been common enough to rank nationally, but it represents a small piece of Japanese-American naming heritage. The name's trajectory has been stable, never experiencing a sharp rise or fall, and it remains a rare choice outside Japan.

Sadao is a Japanese given name, typically masculine. Its exact meaning is unclear, though the kanji used in its spelling can offer various interpretations. Common character combinations include 貞雄 (sada meaning 'chaste' or 'constant' and o meaning 'hero' or 'male'), or 定雄 (sada meaning 'determine' and o meaning 'male'). The name saw modest use in the early 20th century, especially in the 1920s, but has since declined in popularity.

Sibling names for Sadao

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

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

S is for Sadao, our favorite little boy.

S is for Sadao…”

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

Make Sadao's book

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

Questions parents ask

What does the name Sadao mean?
The meaning of Sadao depends on the kanji used, but it is commonly associated with characters meaning 'chaste male' or 'determined male'.
How popular is the name Sadao?
Sadao has never ranked in the U.S. top 1000. Its peak year was 1926, but it has been rare ever since.
Is Sadao a boy or girl name?
Sadao is traditionally a boy name.