Search gender: all male female リヨウコ Japanese Girl Names Variations. 1 names found. gender: all male female Name: riyoko Katakana: リヨウコ 0 Kanji: 涼子 Meaning: 涼Cool. Coolness. A cool, pleasant coolness. Clean and beautiful. Clean. The heart is beautiful. Sadness. Sorrowful. 子Children You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > リヨウコ Japanese Girl Names Variations.