Search gender: all male female メイユウ Japanese Girl Names Variations. 1 names found. gender: all male female Name: meiyu Katakana: メイユウ 0 Kanji: 盟友 Meaning: 盟Swear 友Friend You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > メイユウ Japanese Girl Names Variations.