Rintaro
Meaningoften dignified eldest son · Japanese
Rintaro is a Japanese boy name often meaning “dignified eldest son”. 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 simple to spell and say, and it pairs well with a short middle name.
Did you know?
- GenerationRintaro peaked in 2000, which makes it a Gen Z name. The typical Rintaro you'd meet today is about 25 years old.
- HistoryRintaro first shows up in US birth records in 2000, the first year at least 5 babies got it. That makes it a fairly new name, younger than many of today's parents.
US births per million boys, 2000–2025
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Popularity: U.S. Social Security Administration (babies with 5+ births per year).
About the name Rintaro
Rintaro is a boy name of Japanese origin meaning “often dignified eldest son”. With 3 syllables it has a flowing, lyrical sound, so a short middle name balances it nicely. It's a fresh, modern name that only arrived in US birth records in recent decades. 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 Rintaro
What does the name Rintaro mean?
Rintaro means “often dignified eldest son” and comes from Japanese.
What is the origin of the name Rintaro?
Rintaro is Japanese in origin. Other Japanese names to consider are Asa (“healer”), Rio (“river”), Akari (“light, brightness”) and Kenzo (“often healthy third son”).
Is Rintaro a boy or girl name?
Rintaro is a boy name.
How popular is the name Rintaro?
Rintaro is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 2008. It peaked at #10,349 in 2000, so it's a name with history that few kids share today.
What should I know before naming my baby Rintaro?
Rintaro is a Japanese boy name often meaning “dignified eldest son”. 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 simple to spell and say, 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.