Search gender: all male female イソ Japanese Names Variations. 1 names found. gender: all male female Name: iso Katakana: イソ 0 Kanji: 以素 Meaning: 以Use. To use. To think. 素Element. A predisposition. As you were born. Usual. Undyed silk. White silk. A word used in the name of an element. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > イソ Japanese Names Variations.