Masanobu
Boys' nameMeaning not yet documented
Masanobu has been given to 35 babies in the U.S. since 1917. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1926, with 7 recorded.
Babies named Masanobu, 1934
1 in 346,000
Masanobu over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Masanobu?
Masanobu had fewer than 5 recorded uses in 2025, so these figures use 1934, the last year it was published.
- Among all babies, 1934
- 1 in 346,000
- 6 of 2,076,780 births
- Among boys only
- 1 in 172,000
- <0.01% of boys
- Rank, 1934
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 239,920 kids
- Even odds of a second one
Where Masanobu sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 1934 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 239,920 children born in 1934 and it's an even bet that one of them is another Masanobu. In a class of 30 the chance is Under 1%.
When Masanobus were born
Half of everyone ever recorded as Masanobu was born before 1924 — so the typical Masanobu is around 101 today.
- Biggest decade
- 1920s
- 51.4% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 0
- People you could plausibly meet
1920s — 51.4% of all recorded uses (18).
Is Masanobu rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1926 (7)
- Years since peak
- 99
- Years
- Year-to-year steadiness
- Not enough data
- Too few years
Where Masanobu is used
Across 1910–2025, Masanobu was most concentrated in Hawaii — about 1 in 33,333 boys, against 1 in 33,312 across all states with data.
Most concentrated
- 1Hawaii1 in 33,333
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Masanobu has too little recent state data to map, so this covers all years from 1910.
Masanobu by the numbers
The raw record for each sex the name is used for.
Names similar to Masanobu
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Masanobu
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.