Seiichi

Seiichi (written: 誠一, 聖一, 清一, 精一, 整一, 成一, 勢一, 盛一 or 晟一) is a masculine Japanese given name. Notable people with the name include:


 * Seiichi Akamine (赤嶺 誠一), Japanese karateka
 * Seiichi Endo (遠藤 誠一), Japanese cult member
 * Seiichi Eto (衛藤 晟一), Japanese politician
 * Seiichi Furuya (古屋 誠一), Japanese photographer
 * Seiichi Hatano (波多野 精一), Japanese philosopher
 * Seiichi Hishikawa (菱川 勢一), Japanese art director
 * Seiichi Iju (伊集 盛一), Japanese karateka
 * Seiichi Ishii (石井 精一), Japanese video game designer
 * Seiichi Itō (伊藤 整一), Imperial Japanese Navy admiral
 * Seiichi Iwao (岩生 成一), Japanese academic, historian and writer
 * Seiichi Kanai (金井 清一), Japanese golfer
 * Seiichi Kaneta (金田 誠一), Japanese politician
 * Seiichi Kuno (久納 誠一), Japanese general
 * Seiichi Makita (巻田 清一), Japanese footballer
 * Seiichi Miyake (三宅 精一), Japanese inventor
 * Seiichi Morimura (森村 誠一), Japanese writer
 * Seiichi Motohashi (本橋 成一), Japanese photographer
 * Seiichi Negishi (根岸 誠一), Japanese footballer
 * Seiichi Niikuni (新国 誠一), Japanese poet and painter
 * Seiichi Ogawa (小川 誠一), Japanese footballer
 * Seiichi Ōmura (大村 清一), Japanese politician
 * Seiichi Osanai (長内 清一), Japanese sport wrestler
 * Seiichi Ota (太田 誠一), Japanese politician
 * Seiichi Saito (斉藤 誠一), Japanese footballer
 * Seiichi Sakiya (崎谷 誠一), Japanese footballer
 * Seiichi Shima (嶋清 誠一), Japanese baseball player and soldier
 * Seiichi Sugano (菅野 誠一), Japanese aikidoka
 * Seiichi Suzuki (philologist) (鈴木 誠一), Japanese philologist
 * Seiichi Suzuki (figure skater) (鈴木 誠一), Japanese figure skater
 * Seiichi Tagawa (田川 誠一), Japanese politician
 * Seiichi Takamura (高村 誠一), Japanese handball player
 * Takebayashi Seiichi (武林 盛一), Japanese photographer
 * Seiichi Tanabe (田辺 誠一), Japanese actor
 * Seiichi Tanaka (田中 誠一), American musician
 * Seiichi Tejima (手島 精一), Japanese educator
 * Seiichi Tobata (東畑 精一), Japanese scientist
 * Seiichi Uchikawa (内川 聖一), Japanese baseball player
 * Seiichi Yamamoto (山本 精一), Japanese musician