The baby name Kousei is a Male name , 2 syllables long and is pronounced KOH-say (Japanese: Kōsei) — IPA: /koːseɪ/.
Kousei is Japanese in Origin.
The baby name Kousei is a Male name , 2 syllables long and is pronounced KOH-say (Japanese: Kōsei) — IPA: /koːseɪ/.
Kousei is Japanese in Origin.
Kousei is a Japanese masculine given name, typically romanized as Kousei, Kosei, or Kōsei (こうせい/コウセイ). Its meaning depends on the kanji chosen; common spellings include 公正 “fair, just,” 康生 “healthy life,” 光生 “light, life,” 幸生 “fortunate life,” 晃星 or 光星 “bright/light star,” 恒星 “fixed star,” and 誠 combined forms like 宏誠 or 晃誠 “sincere.” This flexibility lets parents balance virtue terms (公, 誠), brightness (光, 晃), health/fortune (康, 幸), and cosmological imagery (星).
Used steadily through the 20th and 21st centuries, Kousei aligns with modern Japanese naming trends that favor optimistic, visually appealing kanji. Awareness outside Japan grew via Olympic judoka Kosei Inoue and the anime character Arima Kousei (Your Lie in April). Variants arise mainly from romanization systems: Kōsei in macrons (Hepburn) versus Kousei/Kosei in everyday spelling; the name may also be written entirely in kana. Overall, Kousei conveys ideals of fairness, resilience, brightness, and aspiration.
Kousei is a rare find. Across 9 countries, we found 21 recorded uses of it.
Based on birth registration data from national statistics agencies.
| Country | Gender | Year | Rank | Born | of |
|---|---|---|---|---|---|
| ID | 0 | #39 | 1 | 2,238 | |
| JP | 0 | #77 | 1 | 4,057 | |
| JP | Girls | 0 | #251 | 1 | 6,592 |
| JP | Boys | 0 | #288 | 10 | 7,909 |
| SD | Boys | 0 | #466 | 1 | 10,523 |
| BO | Boys | 0 | #622 | 1 | 9,244 |
| CL | Boys | 0 | #700 | 1 | 13,390 |
| CO | Boys | 0 | #980 | 2 | 15,656 |
| MX | Boys | 0 | #1,033 | 1 | 16,355 |
| DZ | 0 | #1,234 | 1 | 20,130 | |
| SA | Boys | 0 | #1,691 | 1 | 28,008 |
Kousei is popular in 9 countries — most recent births per country:
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