Search gender: all male female クワコ Japanese Girl Names Variations. 1 names found. gender: all male female Name: kuwako Katakana: クワコ 1 Kanji: 桑子 Meaning: 桑"Maluberry (a kind of tree). A deciduous tree of the mulberry family. The leaves are used as fodder for silkworms." 子Children You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > クワコ Japanese Girl Names Variations.