Sumio
Meaningoften clear man · Japanese
Sumio is a Japanese boy name often meaning “clear 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?
- GenerationSumio peaked in 1918, which makes it a Greatest Generation name, think great-grandparents.
- HistorySumio first shows up in US birth records in 1918, the first year at least 5 babies got it. It has been in use for 107 years since.
US births per million boys, 1918–2025
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Popularity: U.S. Social Security Administration (babies with 5+ births per year).
About the name Sumio
Sumio is a boy name of Japanese origin meaning “often clear 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 1910s, 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 Sumio
What does the name Sumio mean?
Sumio means “often clear man” and comes from Japanese. Other boy names with a similar meaning include Clare (“bright, clear”), Akira (“bright, clear”), Safwan (“clear stone”) and Kaisei (“often clear weather”).
What is the origin of the name Sumio?
Sumio is Japanese in origin. Other Japanese names to consider are Asa (“healer”), Rio (“river”), Akari (“light, brightness”) and Kenzo (“often healthy third son”).
Is Sumio a boy or girl name?
Sumio is a boy name.
How popular is the name Sumio?
Sumio is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 1925. It peaked at #3,728 in 1918, so it's a name with history that few kids share today.
What names are similar to Sumio?
If you like Sumio, you might also like Clare, Akira, Safwan and Kaisei.
What should I know before naming my baby Sumio?
Sumio is a Japanese boy name often meaning “clear 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.