Search gender: all male female マタハチ Japanese Boy Names Variations. 1 names found. gender: all male female Name: matahachi Katakana: マタハチ 0 Kanji: 又八 Meaning: 又And 八Eight. Eighth. Kanji character for the number 8 (eight). A number one more than seven. A large number of people. It is said to be a lucky number because of its shape. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > マタハチ Japanese Boy Names Variations.