Meiko Kaji (梶 芽衣子, Kaji Meiko, born March 24, 1947) is a Japanese actress and singer. She has appeared in about 100 films, with her most famous roles being outlaw characters in early 1970s films, such as the rebels of the Stray Cat Rock series, the assassin Lady Snowblood, and the murderous Nami Matsushima from the Female Prisoner 701: Scorpion series.

In 1971, Nikkatsu moved into the pink film business, and to avoid this, Kaji moved to Toei Company. There she made the Female Convict 701: Scorpion series of films. In 1973 she took on the role of Yuki in the revenge-themed film Lady Snowblood, followed by a sequel, Lady Snowblood 2: Love Song of Vengeance. She went on to appear in several of Kinji Fukasaku's films, such as Yakuza Graveyard (1976). In 1978, she starred in Sonezaki Shinjū, for which she earned nominations for Best Actress at five different awards shows, winning four of them.

Kaji has worked in television since the 1980s. In 1989 she portrayed Omasa, an informant, in the television drama Onihei Hankachō (the Shochiku–Fuji Television version starring kabuki