Search gender: all male female サダロウ Japanese Boy Names Variations. 1 names found. gender: all male female Name: sadaro Katakana: サダロウ 0 Kanji: 禎朗 Meaning: 禎Good fortune. A good thing. A sign of good fortune. The right thing to do. 朗Cheerful. Explicit. A bright, cheerful personality. A beautiful, unclouded appearance. Honest. Clear-hearted. A clear voice. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > サダロウ Japanese Boy Names Variations.