Kotaro

/K-OW-T-AA-R-OW/

Boy ShintoBuddhistAtheist Japanese origin Japanese

Tiger's firstborn son — ko (tiger) + taro (firstborn son). Fierce legacy from birth

See Kotaro scored for your family

Meaning & origin

Kotaro is a boy's name of Japanese origin, traditionally used in Shinto families. The name means "Tiger's firstborn son — ko (tiger) + taro (firstborn son). Fierce legacy from birth" and belongs to the Courage cluster — names for children who will grow into bold, fearless hearts.

Beyond its Shinto heritage, Kotaro is also used in Buddhist, Atheist traditions, reflecting how this name has traveled across cultures.

Common among Japanese families, Kotaro carries cultural weight that goes beyond its dictionary definition — it's a name with a story and a community.

Numerology of Kotaro

Numerology assigns each name a single-digit destiny number by summing its letter values. Different schools use different mappings — NameRoot computes both so you can see how Kotaro resonates in either tradition.

Pythagorean
8
material mastery and executive power
Chaldean
5
freedom and adventurous change

How Kotaro sounds

NameRoot scores the phonetic fit of every name against the sound of your last name. The pronunciation of Kotaro breaks down into 6 phonemes: /K-OW-T-AA-R-OW/. In the app, you'll see how those sounds flow with your family name across rhythm, stress, and consonant clusters.

Nicknames

Common affectionate forms of Kotaro — useful for everyday family conversation, early childhood, or as standalone given names themselves.

KotaKoti

The six signals, applied to Kotaro

NameRoot scores every name across six independent dimensions. Here's how Kotaro maps to each — install the app to see the full compatibility score for your specific family.

01 — Birth Star
Nakshatra match
Enter your baby's birth date in the app and we'll compute the nakshatra compatibility score.
02 — Numerology
Destiny alignment
Pythagorean and Chaldean life-path calculations (destiny 8) matched against your family's own numerology profile.
03 — Phonetics
Last-name fit
Rhythm, stress, and consonant clusters measured with IPA to see how Kotaro flows with your family name.
04 — Meaning
Courage
Kotaro belongs to the Courage cluster — names for children who will grow into bold, fearless hearts.
05 — Cultural & Tradition
Shinto
As a Shinto name, Kotaro carries religious and cultural weight scored against your family's heritage — plus grandparent-name matches, saint's-day alignment, and generational naming patterns scored against your family tree.
06 — Uniqueness
Popularity balance
How common Kotaro is today versus historically — finding the sweet spot between familiar and forgotten.

Names similar to Kotaro

If Kotaro resonates with you, these names live in the same world — drawn from the same tradition, sharing the same meaning, or echoing a similar sound.

From the same tradition

Other Shinto boy names, common in Japanese families

Henry
From Germanic heimrich: heim (home) + ric (ruler, power)
William
Resolute protector, from the Germanic wil (will, determination) joined to helm (helmet, protection), naming one whose guarding strength is matched by an unbending will. Carried into England by the Conqueror, it became one of the most enduring names of the English-speaking world.
Felix
Happy, fortunate, blessed by luck — Felix is the Roman conviction that happiness is not an accident but a state that attaches itself to certain people like sunlight to a south-facing wall. Multiple saints and four popes bore this name, and it carries the warm optimism of Latin culture, the confidence that life tilts toward joy, and the simple, radical claim that this child was born under a lucky star
Samuel
Heard by God, name of God, from Hebrew Shemu'el

Sharing the same meaning

Other Shinto boy names from the Courage cluster

Liam
Irish diminutive of William (Uilliam), from Germanic 'wil' (will) + 'helm' (helmet). Global phenomenon.
Ben
Son, son of the right hand — short for Benjamin. Germany's most-loved short boy name: direct, strong, and universally friendly.
Leo
Lion, the king of beasts whose roar commands silence across the savanna — Leo is the Latin word for lion and the name of thirteen popes, one of the great constellations, and the zodiac sign of midsummer. It carries the regal confidence of an animal that fears nothing, the warmth of a golden mane in the August sun, and the compact majesty of a three-letter name that contains an entire kingdom

Names that sound similar

Shinto boy names that open with the same syllables as Kotaro

Cole
Charcoal-dark, swarthy, from Old English col (coal), once a byname for someone of dark hair or complexion. Carried down as a surname and then a given name, it keeps a quiet sense of depth and earthy strength in its single, blunt syllable.
Colton
Coal town, from the Old English col meaning charcoal
Côme
Order, universe — the French form of Cosmo/Cosmas. Saint Côme is the patron of physicians

Common questions about Kotaro

What does the name Kotaro mean?

Kotaro means "Tiger's firstborn son — ko (tiger) + taro (firstborn son). Fierce legacy from birth." It is a boy name of Japanese origin, traditionally used in Shinto families.

Is Kotaro a boy or girl name?

Kotaro is most commonly used as a boy name.

What is the origin of the name Kotaro?

Kotaro is of Japanese origin, used in Shinto, Buddhist, Atheist traditions, commonly among Japanese families.

What are common nicknames for Kotaro?

Common short forms of Kotaro include Kota, Koti.

What is the numerology of Kotaro?

Kotaro has a Pythagorean destiny number of 8 — material mastery and executive power.

See how Kotaro scores for your family

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