An uncommon Japanese pick — distinctive and rare.
A male given name from Japanese.
Masao is a boy's baby name of Japanese origin, most commonly written with kanji combining masa (正, meaning 'correct' or 'righteous') and o (夫 or 男, meaning 'man' or 'husband'). The name conveys moral integrity and upright character.
Common among Japanese men born in the early-to-mid 20th century, Masao has a traditional, dignified quality — the kind of name that appears in the family register going back generations.
Masao has 37+ years of history in the U.S., first appearing in 1907.
| Decade | Births | Trend |
|---|---|---|
| 2010s | 18 | ▲ |
| 1980s | 7 | ▲ |
| 1960s | 5 | ▼ |
| 1940s | 11 | ▼ |
| 1930s | 114 | ▼ |
| 1920s | 453 | ▲ |
| 1910s | 400 | ▲ |
| 1900s | 10 | — |
| Year | Births | Rank |
|---|---|---|
| 2019 | 5 | #13420 |
| 2013 | 5 | #13364 |
| 2011 | 8 | #9319 |
| 1982 | 7 | #5398 |
| 1960 | 5 | #4404 |
| 1941 | 6 | #3375 |
| 1940 | 5 | #3774 |
| 1938 | 11 | #2276 |
| 1937 | 10 | #2422 |
| 1936 | 7 | #3061 |
| 1935 | 12 | #2203 |
| 1934 | 8 | #2875 |
| 1933 | 13 | #2058 |
| 1932 | 19 | #1693 |
| 1931 | 10 | #2585 |
| 1930 | 24 | #1519 |
| 1929 | 24 | #1508 |
| 1928 | 31 | #1319 |
| 1927 | 33 | #1286 |
| 1926 | 34 | #1258 |
Source: U.S. Social Security Administration. Showing years with 5+ recorded births.
Last updated May 2026 · Data: U.S. Social Security Administration (1907–2019) · Methodology