Search gender: all male female トウコク Japanese Boy Names Variations. 2 names found. gender: all male female Name: tokoku Katakana: トウコク 0 Kanji: 桐谷 Meaning: 桐Empress tree (a kind of tree). A deciduous tree of the Scrophulariaceae family. A metaphor for money or something of value. 谷Valley Name: tokoku Katakana: トウコク 0 Kanji: 透谷 Meaning: 透Show through 谷Valley You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > トウコク Japanese Boy Names Variations.