Search gender: all male female Oso Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: oso Katakana: オソウ 0 Kanji: 雄颯 Meaning: 雄Male. The male of an animal. Brave. An excellent person. Large in scale. 颯The sound of wind. The sound of the wind blowing quickly. Dashing. A gust of wind. A clean appearance. A crisp appearance. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Oso Boy Name Meaning, Kanji Variations.