Search gender: all male female Dadayoshi Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: dadayoshi Katakana: ダダヨシ 0 Kanji: 忠良 Meaning: 忠Sincerity. To serve with sincerity. Seriousness. To serve the state or sovereign with all one's heart. To work hard without bothering. 良Good. Excellent. Favorable. Loving. Gentle. Somewhat. Fair. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Dadayoshi Name Meaning, Kanji Variations.