Search gender: all male female Reiu Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: reiu Katakana: レイウ 1 Kanji: 令羽 Meaning: 令Command. To order. Order of the Son of Heaven (king, emperor). Okiete. Warning. Teachings. Fine. Good. Chief. Secretary. 羽Feathers. Insect wings. Wings. A word for counting birds and rabbits. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Reiu Boy Name Meaning, Kanji Variations.