Jun Amaki (天木じゅん, Amaki Jun) is a Japanese gravure idol, actress, and former member of the J-pop idol groups Kamen Joshi and Armor Girls. Born on October 16, 1995, in Itami, Hyogo Prefecture.

Amaki has appeared in various TV shows, movies, and stage productions. Some of her notable works include the live-action film adaptations of the "Hop Step Jump!" manga series and the TV series "Flower and the Beast".