group-level written forms
Canonical reference record
JMnedict-backedKANJIDIC2 character context
Japanese given name
Kōyū
光佑
Given-name gender label not specified in these source records.
こうゆうコウユウKōyū
Reference coverageDistinct recorded spellings30 Source spelling/reading rows30 Coverage levelExtended
Extended source depth
This reading group has a comparatively broad dictionary footprint across source-recorded spellings or records. The counts describe corpus coverage, not real-world popularity.
records contributing to this reading group
based only on the imported source footprint
Pronunciation & romanization
How to read Kōyū
The kana reading is source-recorded. Romanization and mora segmentation are deterministic reading aids generated from that kana; pitch accent is not inferred.
Normalized to hiragana for comparison.
The same reading converted to katakana.
Macron-style display. Vowel-sequence form: Kouyuu. Personal spelling and true vowel boundaries can differ.
4 morae in this reading. Small ゃ/ゅ/ょ-type kana join the preceding mora.
Audio note: the play button uses Japanese text-to-speech provided by the visitor’s browser/device. It is a convenience preview, not a recorded native-speaker pronunciation or pitch-accent authority.
Reading profile
How Kōyū is represented
These counts describe records in the imported name corpus. They are not a ranking of how popular a spelling is among people in Japan.
こうゆう
among the forms analyzed on this page
in the primary dictionary reading
small ゃ/ゅ/ょ-type kana combine with the preceding mora
recorded spellings
JMnedict classification evidence
How this reading is classified in the source corpus
This separates dictionary classification from popularity. The same exact kana reading can be recorded as a given name, a surname, or both, and given-name records can carry male, female or unspecified source labels.
こうゆう in the imported JMnedict corpus
30 source spelling/reading rows
0 source spelling/reading rows
row counts carrying each JMnedict source label
| Exact reading | Given-name evidence | Given-name labels | Surname evidence |
|---|---|---|---|
| こうゆうKōyū | 3030 source rows | unspecified 30source rows · distinct forms: unspecified 30 | 00 source rows |
Classification boundary: male/female/unspecified are labels attached to imported JMnedict name records. They are not population shares, probabilities, identity claims, or evidence that a spelling is currently common in Japan. A source row can also be repeated across different written forms, so row counts and distinct-writing counts are shown separately.
Spelling anatomy
Corpus structure behind Kōyū
This section summarizes the exact source-recorded forms loaded for this reading group. Stroke and character-position statistics are descriptive corpus properties, not popularity or style scores.
8–28 strokes observed span
among forms with complete KANJIDIC2 stroke data
all component kanji loaded as jōyō/jinmeiyō classes
contains at least one character outside that loaded classification
| Reading | Romanization | Morae | Forms |
|---|---|---|---|
| こうゆう | Kōyū | 4 | 30 |
Reading ambiguity
Can the same writing be read another way?
19 of 30 displayed written forms have more than one given-name reading somewhere in the active JMnedict corpus. This is dictionary-record ambiguity, not a prediction of how a particular person reads the name.
distinct spellings displayed on this page
exact written forms with 2+ source readings
within this active given-name corpus
distinct kana readings for one displayed writing
孝祐
6 source-recorded readings
幸雄
公雄
5 source-recorded readings
光裕
4 source-recorded readings
光佑
3 source-recorded readings
広祐
3 source-recorded readings
康祐
3 source-recorded readings
晃雄
A reading shown without a link is still source-recorded, but its destination group does not currently meet the canonical publication standard. Strong reference pages do not promote limited records merely to create extra internal links.
Kanji role reference
How recurring characters function across Kōyū spellings
Position counts are calculated only from the distinct written forms analyzed for this page. KANJIDIC2 nanori are character-level name-reading references; they are not used here to decompose or assert the reading of a specific multi-kanji name.
| Kanji | Character glosses | Forms | First | Final | Internal | Solo | Strokes | KANJIDIC2 nanori | Loaded class |
|---|---|---|---|---|---|---|---|---|---|
| 雄 | masculine, male, hero | 8 | 0 | 8 | 0 | 0 | 12 | かつ, たけ, つよし, ゆ +1 | Jōyō · KANJIDIC grade 8 |
| 祐 | help | 8 | 0 | 8 | 0 | 0 | 10 | — | Jinmeiyō · KANJIDIC grade 9 |
| 幸 | happiness, blessing, fortune | 5 | 5 | 0 | 0 | 0 | 8 | こ, さき, さし, さっ +6 | Jōyō · KANJIDIC grade 3 |
| 佑 | help, assist | 3 | 0 | 3 | 0 | 0 | 7 | すけ, たすく, ゆ | Jinmeiyō · KANJIDIC grade 9 |
| 裕 | abundant, rich, fertile | 3 | 0 | 3 | 0 | 0 | 12 | すけ, のり, ひろ, ひろし +3 | Jōyō · KANJIDIC grade 8 |
| 公 | public, prince, official | 3 | 3 | 0 | 0 | 0 | 4 | あきら, き, きみ, きん +5 | Jōyō · KANJIDIC grade 2 |
| 有 | possess, have, exist | 3 | 0 | 3 | 0 | 0 | 6 | あ, あら, あり, ある +3 | Jōyō · KANJIDIC grade 3 |
| 晃 | clear | 3 | 3 | 0 | 0 | 0 | 10 | あき, あきら, てる, ひかる +1 | Jinmeiyō · KANJIDIC grade 9 |
| 光 | ray, light | 2 | 2 | 0 | 0 | 0 | 6 | あき, あきら, こお, てる +3 | Jōyō · KANJIDIC grade 2 |
| 宏 | wide, large | 2 | 2 | 0 | 0 | 0 | 7 | あつ, ひろ, ひろし | Jinmeiyō · KANJIDIC grade 9 |
| 融 | dissolve, melt | 2 | 0 | 2 | 0 | 0 | 16 | あきら | Jōyō · KANJIDIC grade 8 |
| 興 | entertain, revive, retrieve | 2 | 2 | 0 | 0 | 0 | 16 | おき, おこっ, とも | Jōyō · KANJIDIC grade 5 |
Counts describe this source-recorded spelling set, not population use. A repeated kanji can contribute to more than one position role across different spellings.
Exact writing research map
Move from a spelling to its readings, characters and literal sequence context
These relationships are exact and source-backed. Whole-name readings shown in each card come from JMnedict within the current name class; exact-writing search can surface records from other name classes. Character links open KANJIDIC2-backed kanji pages. Sequence context means the same kanji string occurs contiguously in another recorded written form—it does not prove shared origin or meaning.
Exact written form
光佑
Source-recorded full-name readings in this name class
Characters in order
Exact written form
光裕
Source-recorded full-name readings in this name class
Characters in order
Exact written form
公佑
Source-recorded full-name readings in this name class
Kōyūこうゆう · this page
Characters in order
Exact written form
公猷
Source-recorded full-name readings in this name class
Kōyūこうゆう · this page
Characters in order
Exact written form
公雄
Source-recorded full-name readings in this name class
Characters in order
Exact written form
好雄
Source-recorded full-name readings in this name class
Kōyūこうゆう · this pageYoshioよしお
Characters in order
Exact written form
孔友
Source-recorded full-name readings in this name class
Kōyūこうゆう · this page
Characters in order
Exact written form
孝祐
Source-recorded full-name readings in this name class
Characters in order
Exact written form
宏裕
Source-recorded full-name readings in this name class
Kōyūこうゆう · this page
Characters in order
Exact written form
宏雄
Source-recorded full-name readings in this name class
Kōyūこうゆう · this pageHirōひろお
Characters in order
Showing research maps for the first 10 distinct written forms out of 30. Every detailed spelling card below still links to exact-writing search and its component kanji.
For VPS safety, contiguous-sequence lookups are limited to six 2–4 kanji forms per canonical page and cached for 12 hours per active JMnedict generation.
Corpus pattern
Kanji recurring across Kōyū spellings
Only characters appearing in at least two distinct analyzed spellings are shown here. Frequency describes this source-recorded spelling set, not real-world baby-name popularity.
雄masculine, male, hero8 of 30 analyzed forms祐help8 of 30 analyzed forms幸happiness, blessing, fortune5 of 30 analyzed forms佑help, assist3 of 30 analyzed forms裕abundant, rich, fertile3 of 30 analyzed forms公public, prince, official3 of 30 analyzed forms有possess, have, exist3 of 30 analyzed forms晃clear3 of 30 analyzed forms光ray, light2 of 30 analyzed forms宏wide, large2 of 30 analyzed forms
Same reading, different writing
Explore written forms of Kōyū
30 source-recorded forms use the primary source reading こうゆう. Other source readings can appear in this romanized group when the imported records converge on the same index form. Use Compare to inspect exact spellings side by side.
光佑
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
光裕
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
公佑
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
公猷
こうゆう · Kōyū
Character-set checkContains at least one kanji outside the loaded jōyō/jinmeiyō classification
公雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
好雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
孔友
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
孝祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
宏裕
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
宏雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
幸勇
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
幸有
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
幸祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
幸裕
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
幸雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
広祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
康祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
晃祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
晃融
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
晃雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
晧有
こうゆう · Kōyū
Character-set checkContains at least one kanji outside the loaded jōyō/jinmeiyō classification
浩祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
甲雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
紘雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
興祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
興雄
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
行佑
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
行祐
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
香融
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
鴻有
こうゆう · Kōyū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Spelling comparator
Compare Kōyū forms side by side
Each exact written spelling appears once in this table even when JMnedict records more than one reading for that writing. Stroke totals and character glosses come from KANJIDIC2 when all component kanji are available.
| Spelling | One source reading | Character-level glosses | Total strokes | Loaded character class |
|---|---|---|---|---|
| 光佑 | こうゆう | 光 — ray, light · 佑 — help, assist | 13 | All kanji jōyō/jinmeiyō-classified |
| 光裕 | こうゆう | 光 — ray, light · 裕 — abundant, rich | 18 | All kanji jōyō/jinmeiyō-classified |
| 公佑 | こうゆう | 公 — public, prince · 佑 — help, assist | 11 | All kanji jōyō/jinmeiyō-classified |
| 公猷 | こうゆう | 公 — public, prince · 猷 — plan, scheme | 17 | Includes unclassified/outside loaded jōyō-jinmeiyō class |
| 公雄 | こうゆう | 公 — public, prince · 雄 — masculine, male | 16 | All kanji jōyō/jinmeiyō-classified |
| 好雄 | こうゆう | 好 — fond, pleasing · 雄 — masculine, male | 18 | All kanji jōyō/jinmeiyō-classified |
| 孔友 | こうゆう | 孔 — cavity, hole · 友 — friend | 8 | All kanji jōyō/jinmeiyō-classified |
| 孝祐 | こうゆう | 孝 — filial piety, child's respect · 祐 — help | 17 | All kanji jōyō/jinmeiyō-classified |
| 宏裕 | こうゆう | 宏 — wide, large · 裕 — abundant, rich | 19 | All kanji jōyō/jinmeiyō-classified |
| 宏雄 | こうゆう | 宏 — wide, large · 雄 — masculine, male | 19 | All kanji jōyō/jinmeiyō-classified |
| 幸勇 | こうゆう | 幸 — happiness, blessing · 勇 — courage, cheer up | 17 | All kanji jōyō/jinmeiyō-classified |
| 幸有 | こうゆう | 幸 — happiness, blessing · 有 — possess, have | 14 | All kanji jōyō/jinmeiyō-classified |
| 幸祐 | こうゆう | 幸 — happiness, blessing · 祐 — help | 18 | All kanji jōyō/jinmeiyō-classified |
| 幸裕 | こうゆう | 幸 — happiness, blessing · 裕 — abundant, rich | 20 | All kanji jōyō/jinmeiyō-classified |
| 幸雄 | こうゆう | 幸 — happiness, blessing · 雄 — masculine, male | 20 | All kanji jōyō/jinmeiyō-classified |
| 広祐 | こうゆう | 広 — wide, broad · 祐 — help | 15 | All kanji jōyō/jinmeiyō-classified |
The comparison table shows the first 16 distinct written forms; the detailed cards above show up to 80 spelling/reading records.
What does Kōyū mean?
There is not necessarily one fixed English meaning. The reading identifies the spoken name; different written forms can use different kanji. Character glosses describe individual kanji and should not be treated as proof of the intention behind a particular person’s name.
Related readings
More names beginning with こう
Related by the opening kana of the dictionary reading. This is a deterministic browsing relationship, not a claim that the names share the same meaning.
Given name · male · limited reference
Kōji
268 recorded spellings
Explore →Given name · male · limited referenceKōichirō
164 recorded spellings
Explore →Given name · male · limited referenceKōnosuke
148 recorded spellings
Explore →Given name · male · limited referenceKōjirō
145 recorded spellings
Explore →Given name · mixed records · limited referenceKōki
138 recorded spellings
Explore →Given name · male · limited referenceKōsaburō
128 recorded spellings
Explore →Given name · male · limited referenceKōtarō
117 recorded spellings
Explore →Given name · male · limited referenceKōsuke
104 recorded spellings
Explore →Given name · male · limited referenceKōichi
101 recorded spellings
Explore →Given name · male · limited referenceKōzō
97 recorded spellings
Explore →Given name · mixed records · limited referenceKōsei
78 recorded spellings
Explore →Given name · mixed records · limited referenceKō
77 recorded spellings
Explore →Evidence on this page
What each source establishes
JMnedict establishes recorded written forms, readings and name classifications; where safely associated, this page can also show JMnedict-supplied trans_det source text without treating it as a whole-name meaning. KANJIDIC2 supplies character readings, nanori, stroke counts, grade classes and English character glosses. The Ministry of Justice remains the official reference for Japanese child-name character rules. The Agency for Cultural Affairs romanization guidance is the reference for generated Latin-script reading aids.
JMnedictChecked 17 Sep 2026Active data built 16 Sep 2026Stored status: downloaded
KANJIDIC2Checked 17 Sep 2026Active data built 17 Sep 2026
Japan Ministry of Justice — characters usable in children’s namesChecked 17 Sep 2026
Japan Agency for Cultural Affairs — Romanization Rules (2025)Checked 17 Sep 2026
Source boundary
The spelling-frequency and structural counts on this page are calculated from imported JMnedict records. They are corpus counts, not population-frequency claims. KANJIDIC2 supplies the kanji metadata used in character and stroke comparisons.
Review sources →