Search gender: all male female コカヤ Japanese Girl Names Variations. 1 names found. gender: all male female Name: kokaya Katakana: コカヤ 0 Kanji: 子萱 Meaning: 子Children 萱Liliaceae (the perennial plant family) You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > コカヤ Japanese Girl Names Variations.