Righteous or truthful — those are the characters most commonly nested inside Masao, paired with the o that marks it as a man's name. It was a mainstay of Showa-era Japan, the kind of name worn by baseball managers and meticulous craftsmen and the uncles who always knew what time it was. Its peak was the mid-twentieth century, which gives it in 2026 a specific warmth: not antique, not current, but settled.
Two syllables move slowly, the central s almost whispering between two long open vowels. The sound is unhurried in a way that feels deliberate, like someone who does not need to announce himself. For Western ears it is easy and slightly exotic simultaneously, landing close enough to Marco or Mateo to feel approachable while remaining entirely its own thing. Paired with surnames that need something measured and calm to precede them, Masao holds its ground without effort. A name that sounds like it already knows what it thinks.
Popularity
1880 to today
US SSA data. Lower rank number means more popular. A flat line at the top of the chart means the name did not rank in the top 1000.
Nicknames
No common nicknames.
Middle name ideas
All middle names for MasaoFamous people
None notable in our records yet.
In fiction
No fictional associations tracked.
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