Tadao
Meaningoften loyal man · Japanese
Tadao is a Japanese boy name often meaning “loyal 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?
- Hidden namesLook closely: Tadao has the name Ada hiding inside it.
- GenerationTadao peaked in 1920, which makes it a Greatest Generation name, think great-grandparents.
- HistoryTadao 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 Tadao
Tadao is a boy name of Japanese origin meaning “often loyal 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 Tadao
What does the name Tadao mean?
Tadao means “often loyal man” and comes from Japanese. Other boy names with a similar meaning include Loyal (“loyal”), Tadahiro (“often loyal and broad”) and Tadayuki (“often loyal fortune”).
What is the origin of the name Tadao?
Tadao is Japanese in origin. Other Japanese names to consider are Asa (“healer”), Rio (“river”), Akari (“light, brightness”) and Kenzo (“often healthy third son”).
Is Tadao a boy or girl name?
Tadao is a boy name.
How popular is the name Tadao?
Tadao 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 #1,457 in 1920, so it's a name with history that few kids share today.
What names are similar to Tadao?
If you like Tadao, you might also like Loyal, Tadahiro and Tadayuki.
What should I know before naming my baby Tadao?
Tadao is a Japanese boy name often meaning “loyal 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.