Search gender: all male female Tatsuku Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: tatsuku Katakana: タツク 0 Kanji: 辰久 Meaning: 辰Dragon. Fifth of the twelve signs of the Chinese zodiac. Eight o'clock in the morning and two hours before and after that. Direction of 30 degrees from east to south. General term for the sun, moon, and stars. 久For a long time. From long ago. From the past. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Tatsuku Boy Name Meaning, Kanji Variations.