Masanori
Masanori was last recorded in 1930, when 5 babies were given it; 60 Americans have been recorded with it between 1916 and 1930 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Masanori by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Masanori?
Unranked in 2025
Its last boys’ rank on record is #4,351, in 1930; SSA lists a name only in years with 5 or more births.
7 babies in 1923, the peak
Masanori peaked in 1923, when 7 boys were given it, #3,687 among boys’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1930 | 5 | #4,351 | 4.6 |
| 1927 | 5 | #4,580 | 4.4 |
| 1925 | 6 | #4,027 | 5.4 |
| 1924 | 5 | #4,741 | 4.4 |
| 1923 | 7 | #3,687 | 6.4 |
| 1922 | 6 | #4,143 | 5.5 |
| 1920 | 6 | #4,107 | 5.6 |
| 1919 | 5 | #4,566 | 5.1 |
| 1918 | 5 | #4,576 | 4.9 |
| 1917 | 5 | #4,354 | 5.4 |
Every recorded year (11)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1916 | 5 | #4,279 | 5.6 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Masanori a boy’s or a girl’s name?
Masanori has been recorded only for boys: SSA lists no girls with the name in 11 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Masanori: the SSA national file counts each sex separately.
How many people are named Masanori, and how old are they?
Almost everyone recorded as Masanori was born before 1900, so the estimate of Americans with the name alive today rounds to none. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 247 people named Masanori (0 women and girls, 247 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 2 born in the U.S. The Census count is 123.5 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names that rose and fell in the same decades as Masanori
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.