Search gender: all male female Atsuma Boy Name Meaning, Kanji Variations. 21 names found. gender: all male female Name: atsuma Katakana: アツマ 0 Kanji: 忠真 Meaning: 忠Sincerity. To serve with sincerity. Seriousness. To serve the state or sovereign with all one's heart. To work hard without bothering. 真True. Truth, not falsehood. Nature as it is. True form. Innate. You can save your favorite names with prev12 NAZUKE PON > About Japanese Names > Search For Japanese Names > Atsuma Boy Name Meaning, Kanji Variations.