Search gender: all male female Kotoru Girl Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: kotoru Katakana: コトル 1 Kanji: 瑚音瑠 Meaning: 瑚Name of the instrument. A vessel used to hold the five grains of rice and offer them to a religious temple. A character used for coral. 音Sound. Tone. Voice. News. 瑠Lapis lazuli. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Kotoru Girl Name Meaning, Kanji Variations.