Search gender: all male female リョウウミ Japanese Boy Names Variations. 1 names found. gender: all male female Name: ryoumi Katakana: リョウウミ 0 Kanji: 涼海 Meaning: 涼Cool. Coolness. A cool, pleasant coolness. Clean and beautiful. Clean. The heart is beautiful. Sadness. Sorrowful. 海Sea. Wide and large. A place where many people and things gather. A large lake or pond. A large lake or pond. A frontier. The end of the earth. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > リョウウミ Japanese Boy Names Variations.