Use original characters
Process names in the writing system already present and store the result in separate fields.
Japanese name gender lookup
Determine gender from Japanese names
Analyze a single or full Japanese name in kanji, kana or romanized form and return a name-based gender prediction with Japan-specific context.
- Kanji and kana input
- JP country context
- AI fallback enabled
Japanese names can have multiple readings and may be used across genders. Treat the result as an inferred signal—not self-identified gender.
Try it online
Analyze a Japanese name
Submit a single or full name. The demo adds JP context and AI fallback automatically.
Example response shown below. Select Analyze name to run a live lookup.
Example JSON response
{
"status": true,
"q": "葵 高橋",
"name": "葵",
"gender": "female",
"country": "JP",
"probability": 95
}How it works
Submit the original spelling with Japanese context
The API accepts one complete value and evaluates it with Japan country context, preserving the submitted characters and name order.
- 01Submit the name
Use a given name or full name in kanji, hiragana, katakana or Latin-script romanization.
- 02Apply JP context
Regional context helps interpret Japanese name evidence and distinguish cross-country usage.
- 03Review the response
Check the extracted name, gender and probability; preserve ambiguous outcomes as unknown.
Japanese-script data
Keep kanji and kana in your source records
Original-script input can retain name information that may be altered or lost during romanization.
Avoid manual splitting
Submit the full name without creating an unreliable given-name/family-name split first.
Account for ambiguity
Multiple readings, generational patterns and unisex names make probability review essential.
Kanji, kana and readings
The same characters can carry different signals
Kanji may have several readings, while a name can be written in hiragana, katakana or multiple romanized forms. Spelling and context therefore affect the available evidence.
askToAI=true extends coverage when database evidence is absent, but it does not make an ambiguous name certain. Allow unknown results and avoid high-impact decisions.
Frequently asked questions
Japanese name gender FAQ
How can gender be inferred from a Japanese name?
GenderAPI evaluates the submitted name using Japanese name evidence and regional context, then returns a name-based prediction and probability when enough evidence is available.
Can I enter names in kanji, hiragana or katakana?
Yes. The tool accepts Unicode input in kanji and kana. Results depend on the spelling, reading ambiguity and available name evidence.
Do I need to separate the given name and family name?
No. You can submit the full Japanese name in one field. The response shows the name signal used for prediction.
Can I submit a romanized Japanese name?
Yes. A Latin-script romanization can be submitted, though alternative romanizations may produce different evidence and probability values.
How is AI used in this demo?
The demo sends askToAI=true with JP country context. AI fallback is considered when the database has no result; it does not guarantee an answer.
Are submitted name queries stored?
The published policy says successful inputs are not retained as reusable query records. Technical and security logs follow a separate retention schedule. A query for which no gender can be found may be retained to improve GenderAPI; see the Privacy Policy for details.
Build the integration
Use Japanese name context in your application
Review authentication, country context, AI fallback and response fields before implementation.