平泉成（平泉成，1944年6月2日出生于爱知县前沼田市），日本演员。1964年，平泉加入大荣电影公司，开始了他的演艺生涯。在 1970 年代至 1980 年代初，他以客串反派演员的身份出演了很多 jidaigeki 和侦探电视剧。

Sei Hiraizumi (平泉 成, Hiraizumi Sei, born on June 2, 1944 in the former Nukata, Aichi) is a Japanese actor. In 1964, Hiraizumi joined Daiei Film company and started his acting career. In the 1970s to early 1980s, he appeared a lot of jidaigeki and detective television dramas as a guest villain actor.