Search gender: all male female Onsa Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: onsa Katakana: オンサ 0 Kanji: 音叉 Meaning: 音Sound. Tone. Voice. News. 叉A tool with a two-pronged tip that points at an object. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Onsa Boy Name Meaning, Kanji Variations.