Search gender: all male female カシワ Japanese Girl Names Variations. 1 names found. gender: all male female Name: kashiwa Katakana: カシワ 2 Kanji: 柏 Meaning: 柏Japanese Emperor Oak(a kind of tree). General term for evergreen trees of the cypress family. Deciduous tall tree of the beech family. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > カシワ Japanese Girl Names Variations.