Nobuo
Meaningoften faithful man · Japanese
Nobuo is a Japanese boy name often meaning “faithful man”. In Japan, parents often choose a name as much for the kanji characters behind it as for its sound, so the same name can carry several shades of meaning. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds soft and friendly, it's easy to spell and quick to call across a playground, and it pairs well with middle names of almost any length.
Did you know?
- GenerationNobuo peaked in 1921, which makes it a Greatest Generation name, think great-grandparents.
- HistoryNobuo first shows up in US birth records in 1913, the first year at least 5 babies got it. It has been in use for 112 years since.
Save adds it to your list. Vote moves it up the top voted names.
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
About the name Nobuo
Nobuo is a boy name of Japanese origin meaning “often faithful man”. Its two syllables give it an easy rhythm, and the open vowel at the end makes it sound soft and warm. It was most fashionable in the 1920s, which gives it a vintage, grandparent-chic charm. It's rarely heard today, so it stands out while still being a real, established name.
Origin:Japanese names
More Japanese boy names
- Unisex name: Asa · healer
- Unisex name: Rio · river
- Unisex name: Akari · light, brightness
- Boy name: Kenzo · often healthy third son
- Boy name: Kenji · often strong second son
- Unisex name: Ren · often lotus
- Unisex name: Zen · meditation
- Unisex name: Mars · god of war
Questions about the name Nobuo
What does the name Nobuo mean?
Nobuo means “often faithful man” and comes from Japanese. Other boy names with a similar meaning include Caleb (“dog, faithful”), Kaleb (“dog, faithful”), Amin (“trustworthy, faithful”) and Fidel (“faithful”).
What is the origin of the name Nobuo?
Nobuo is Japanese in origin. Other Japanese names to consider are Asa (“healer”), Rio (“river”), Akari (“light, brightness”) and Kenzo (“often healthy third son”).
Is Nobuo a boy or girl name?
Nobuo is a boy name.
How popular is the name Nobuo?
Nobuo is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 1938. It peaked at #1,588 in 1921, so it's a name with history that few kids share today.
What names are similar to Nobuo?
If you like Nobuo, you might also like Caleb, Kaleb, Amin and Fidel.
What should I know before naming my baby Nobuo?
Nobuo is a Japanese boy name often meaning “faithful man”. In Japan, parents often choose a name as much for the kanji characters behind it as for its sound, so the same name can carry several shades of meaning. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds soft and friendly, it's easy to spell and quick to call across a playground, and it pairs well with middle names of almost any length. Say it out loud with your last name and any middle names you're considering, and check the initials it makes.