Search gender: all male female Koyo Name Meaning, Kanji Variations. 161 names found. gender: all male female Name: koyo Katakana: コウヨウ 0 Kanji: 公耀 Meaning: 公Public. Matters concerning the country or government. Government, state, office. To be known by many people. Obvious. Something ostensible. Unbiased. Correct. Neutral. A person of high status, such as a son, emperor, or monarch. 耀Glittering. Shine. You can save your favorite names with prev1…56789 NAZUKE PON > About Japanese Names > Search For Japanese Names > Koyo Name Meaning, Kanji Variations.