Search gender: all male female オノスケ Japanese Boy Names Variations. 1 names found. gender: all male female Name: onosuke Katakana: オノスケ 0 Kanji: 斧介 Meaning: 斧Axe 介Help. A person who helps. To be near, to accompany. to take care of. To intercede. To make friends with. to separate. to separate. to be firm. To protect tightly. Something that covers the outside to protect oneself. boundary. border. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > オノスケ Japanese Boy Names Variations.