Search gender: all male female Koyoku Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: koyoku Katakana: コヨク 0 Kanji: 虎翼 Meaning: 虎Tiger. A metaphor for something as strong as a tiger. A drunkard. 翼Wing. A wing of a bird, airplane, etc. Help. Something that protrudes from side to side like a wing. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Koyoku Boy Name Meaning, Kanji Variations.