Isamu
Meaningcourage · Japanese
Isamu is a Japanese boy name meaning “courage”. 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 flowing and melodic, it's easy to spell and quick to call across a playground, and it pairs well with a short middle name.
Did you know?
- Hidden namesLook closely: Isamu has the names Isa and Sam hiding inside it.
- GenerationIsamu peaked in 1922, which makes it a Greatest Generation name, think great-grandparents.
- HistoryIsamu first shows up in US birth records in 1912, the first year at least 5 babies got it. It has been in use for 113 years since.
US births per million boys, 1912–2025
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Popularity: U.S. Social Security Administration (babies with 5+ births per year).
About the name Isamu
Isamu is a boy name of Japanese origin meaning “courage”. With 3 syllables it has a flowing, lyrical sound, so a short middle name balances it nicely. 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 Isamu
What does the name Isamu mean?
Isamu means “courage” and comes from Japanese. Other boy names with a similar meaning include Moxie (“courage, nerve”) and Dhairya (“patience, courage”).
What is the origin of the name Isamu?
Isamu is Japanese in origin. Other Japanese names to consider are Asa (“healer”), Rio (“river”), Akari (“light, brightness”) and Kenzo (“often healthy third son”).
Is Isamu a boy or girl name?
Isamu is a boy name.
How popular is the name Isamu?
Isamu is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 2023. It peaked at #1,120 in 1922, so it's a name with history that few kids share today.
What names are similar to Isamu?
If you like Isamu, you might also like Moxie and Dhairya.
What should I know before naming my baby Isamu?
Isamu is a Japanese boy name meaning “courage”. 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 flowing and melodic, it's easy to spell and quick to call across a playground, and it pairs well with a short middle name. Say it out loud with your last name and any middle names you're considering, and check the initials it makes.