Search gender: all male female ナナミコ Japanese Girl Names Variations. 1 names found. gender: all male female Name: nanamiko Katakana: ナナミコ 0 Kanji: 那波子 Meaning: 那Question/antonyms auxiliary characters 波Waves. The motion of the surface of water. Something that moves like a wave. Something that is transmitted like a wave. 子Children You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ナナミコ Japanese Girl Names Variations.