Search gender: all male female Seigetsu Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: seigetsu Katakana: セイゲツ 0 Kanji: 星月 Meaning: 星A star. A star shining in the night sky. Celestial bodies. The flow of years, months, and days. An important person. A landmark. Signs. Aims. 月Moon. A satellite of the Earth. One of the celestial bodies visible in the sky. One month. A Monday. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Seigetsu Boy Name Meaning, Kanji Variations.