Search gender: all male female Naoisa Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: naoisa Katakana: ナオイサ 0 Kanji: 直功 Meaning: 直Correct. Honest. Straight-hearted. fix. Direct. 功Success. Credit. Results. Results of efforts. Work. Excellent work. Signs. ingenuity. Discipline. Skillfulness. Elaboration. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Naoisa Boy Name Meaning, Kanji Variations.