Search gender: all male female Isago Girl Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: isago Katakana: イサゴ 0 Kanji: 砂 Meaning: 砂Sand. A fine grained substance. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Isago Girl Name Meaning, Kanji Variations.