Search gender: all male female Aku Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: aku Katakana: アクウ 0 Kanji: 亜空 Meaning: 亜Next. Near. Similar. Companions. Branching point. Abbreviation for Asia (Asia). 空Sky. Atmosphere. Heaven. Big. Wide. Empty. No substance. Meaningless. Useless. In Buddhism, something without substance or essence. A thing related to aviation. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Aku Name Meaning, Kanji Variations.