Search gender: all male female リョウタン Japanese Boy Names Variations. 1 names found. gender: all male female Name: ryotan Katakana: リョウタン 1 Kanji: 遼檀 Meaning: 遼 檀Spindle tree (a kind of tree). A deciduous shrub of the family Aceraceae. It is used to make wheels. Fragrant wood You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > リョウタン Japanese Boy Names Variations.