Search gender: all male female トウサ Japanese Girl Names Variations. 1 names found. gender: all male female Name: tosa Katakana: トウサ 0 Kanji: 塔紗 Meaning: 塔Tower 紗Thin silk. A thin, coarse silk fabric. A veil-like fabric. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > トウサ Japanese Girl Names Variations.