Search gender: all male female Isuo Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: isuo Katakana: イスオ 0 Kanji: 一壽男 Meaning: 一One. The first. Kanji for the number 1 (one). To be the most superior. To begin, to put things together. 壽Long life. Life. Age. Celebration. Celebration of long life. 男Male. Adult male. Son. You can save your favorite names with NazukePON > About Japanese Names > Search For Japanese Names > Isuo Name Meaning, Kanji Variations.