Search gender: all male female Tetsuru Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: tetsuru Katakana: テツル 0 Kanji: 哲琉 Meaning: 哲Wise. Smart. Excellent in wisdom. Talented. Excellent in insight. Clear to reason. 琉Ruri(lapis lazuli). Name of a gemstone. A deep blue to indigo-colored gemstone. One of the seven treasures. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Tetsuru Boy Name Meaning, Kanji Variations.