Search gender: all male female Tetsui Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: tetsui Katakana: テツイ 0 Kanji: 哲維 Meaning: 哲Wise. Smart. Excellent in wisdom. Talented. Excellent in insight. Clear to reason. 維Maintain You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Tetsui Boy Name Meaning, Kanji Variations.