Search gender: all male female Onya Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: onya Katakana: オンヤ 0 Kanji: 温也 Meaning: 温Warmth. Temperature. Soothing. Gentle. To cherish. 也Affirmation. Words for exclamations, questions, and antonyms. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Onya Name Meaning, Kanji Variations.