Search gender: all male female Issetsu Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: issetsu Katakana: イッセツ 0 Kanji: 一摂 Meaning: 一One. The first. Kanji for the number 1 (one). To be the most superior. To begin, to put things together. 摂Take it in. Delegate. To make ready. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Issetsu Boy Name Meaning, Kanji Variations.