No, Japanese citizens never have middle names. Although foreigners may use middle names in Japan, middle names for the Japanese themselves are completely unheard of in Japan, and documentation such as forms, passports, and family registries (equivalent to marriage and birth certificates) have no place to write a middle name. Some Japanese people may affect a middle initial when writing their names in roman letters, but this is not a part of their official name.
See also How do Japanese names work?
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