Search gender: all male female Isaharu Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: isaharu Katakana: イサハル 0 Kanji: 功覇 Meaning: 功Success. Credit. Results. Results of efforts. Work. Excellent work. Signs. ingenuity. Discipline. Skillfulness. Elaboration. 覇Hegemony You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Isaharu Boy Name Meaning, Kanji Variations.