Seiji

Seiji (written: 誠二, 誠治, 誠史, 誠司, 誠次, 清二, 清治, 清次, 聖二, 聖治, 聖司, 征二, 征治, 征爾, 成二, 精二, 菁児, 菁滋, 静児, 政二 or せいじ in hiragana) is a masculine Japanese given name and may refer to:

• Seiji Aochi (青地 清二?) (1942–2008), Japanese ski jumper
• Seiji Ara (荒 聖治?) (born 1974), Japanese racing driver
• Seiji Chiba (千葉 誠治?) (born 1964), Japanese film director and producer
• Seiji Ebihara (海老原 清治?) (born 1949), Japanese golfer
• Seiji Hagiwara (萩原 誠司?) (born 1956), Japanese politician
• Seiji Hirao (平尾 誠二?) (born 1963), Japanese rugby union player
• Seiji Hisamatsu (久松 静児?) (1912–1990), Japanese film director
• Seiji Honda (本田 征治?) (born 1976), Japanese footballer
• Seiji Inagaki (born 1973), Japanese hurdler
• Seiji Kameda (亀田 誠治?) (born 1964), Japanese musician and record producer
• Seiji Kaneko (金古 聖司?) (born 1980), Japanese footballer
• Seiji Kihara (木原 誠二?) (born 1970), Japanese politician
• Seiji Koga (古賀 誠史?) (born 1979), Japanese footballer
• Seiji Kishi (岸 誠二?), Japanese anime director
• Seiji Kubo (born 1973), Japanese footballer
• Seiji Kumagai (熊谷 誠二?) (born 1967), Japanese voice actor
• Seiji Kurata (倉田 精二?) (born 1945), Japanese photographer
• Seiji Maehara (前原 誠司?) (born 1962), Japanese politician
• Seiji Mataichi (又市 征治?) (born 1944), Japanese politician
• Seiji Matsuyama (松山 せいじ?) (born 1975), Japanese manga artist
• Seiji Miyaguchi (宮口 精二?) (1913–1985), Japanese actor
• Seiji Mizushima (水島 精二?) (born 1966), Japanese anime director
• Seiji Morita (森田 清次?), Japanese film editor
• Seiji Nakamura (仲村 正治?) (born 1931), Japanese politician
• Seiji Nemoto (根本 誠次?) (born 1961), Japanese sport wrestler
• Seiji Ogawa (小川 誠二?) (born 1934), Japanese biologist
• Seiji Oko (大古 誠司?) (born 1948), Japanese volleyball player
• Seiji Ono, Japanese table tennis player
• Seiji Osaka (逢坂 誠二?) (born 1959), Japanese politician
• Seiji Ozawa (小澤 征爾?) (born 1935), Japanese conductor
• Seiji Sakaguchi (坂口 征二?) (born 1942), Japanese professional wrestler
• Seiji Sasaki (佐々木 誠二?) (born 1965), Japanese voice actor
• Seiji Shibata (柴田 征二?) (born 1938), Japanese fencer
• Seiji Shinkai (新海 征治?) (born 1944), Japanese chemist
• Seiji Suzuki (鈴木 政二?) (born 1948), Japanese politician
• Seiji Takahashi (高橋 聖二?) (born 1993), Japanese ice hockey player
• Seiji Takaiwa (高岩 成二?) (born 1968), Japanese actor
• Seiji Takaku, Japanese psychologist
• Seiji Takeda (竹田 菁滋?) (born 1960), Japanese television producer
• Seiji Tōgō (東郷 青児?) (1897–1978), Japanese painter and artist
• Seiji Ueda (上田 清二?) (born 1952), Japanese astronomer
• Seiji Yamada (山田 誠司?) (born 1966), Japanese ski mountaineer
• Seiji Yokoyama (横山 菁児?) (born 1935), Japanese composer