Holding steady.
Popularity of Isao since 1915
Babies named Isao per year in U.S. Social Security records. Raw births topped out in 1925, but relative to how few babies were recorded back then, Isao's real moment was 1917.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1910s | 70 |
| 1920s | 128 |
| 1930s | 38 |
| 1940s | 5 |
| 1950s | 0 |
| 1960s | 0 |
| 1970s | 0 |
| 1980s | 0 |
| 1990s | 0 |
| 2000s | 0 |
| 2010s | 5 |
| 2020s | 0 |
Meaning & origin
Isao is a Japanese name with uncertain but honorable roots. It has been in occasional use in the United States since at least 1915, with its peak recorded year being 1917. After a peak in the late 1910s, its use remained stable but rare. The name has never appeared in the top 1000 names and its one-in-N statistic was not recorded for recent years. The name is primarily associated with Japanese heritage and culture.
Isao is a Japanese given name. It is often written with the kanji 功 meaning 'merit, achievement' or 勲 meaning 'meritorious deed'. The name dates to at least the early 20th century in Japan, with recorded use in the United States beginning in 1915.
“Isao” around the world
Where Isao lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
120
babies in 2024
Sources: INSEE (France).
Sibling names for Isao
Names that share Isao's style, for a brother or sister.

