Search gender: all male female オマ Japanese Names Variations. 2 names found. gender: all male female Name: oma Katakana: オマ 0 Kanji: おま Meaning: お ま Name: oma Katakana: オマ 0 Kanji: 小真 Meaning: 小Small. Little. Small in number or quantity. Trivial. Insignificant. Unimportant. Young person. Underestimate the ability. To treat lightly. A word used to humble oneself. 真True. Truth, not falsehood. Nature as it is. True form. Innate. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > オマ Japanese Names Variations.