Search gender: all male female Nio Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: nio Katakana: ニオウ 0 Kanji: 仁凰 Meaning: 仁Compassion. Kindness. People. A word used with respect to a person. The heart of a person. Humanity. A person who has virtue. 凰The phoenix, a legendary bird. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Nio Boy Name Meaning, Kanji Variations.