Ultra Maniac is a Japanese romantic comedy manga series written by Wataru Yoshizumi. It features two eighth grade students named Ayu Tateishi, a tennis club member, and Nina Sakura, who is actually a trainee witch from the magical kingdom. A manga adaption began serialization in Shueisha's Ribon magazine from February 2001 until January 2004, published in five collected volumes. Viz Media licensed and released an English translation of the series in North America. With Miho Shimogasa (character designer of Cutie Honey Flash and one of the animation directors of Sailor Moon) by designing the characters and Animation Production by Ashi Productions (who did with Magical Princess Minky Momo, Magical Angel Sweet Mint, Jankenman, and Flower Witch Mary Bell).

The series was first adapted into a 20-minute original video animation on August 6, 2002. It was also adapted into a 26-episode anime television series from May until November 2003, later licensed for Region 1 distribution by Geneon Entertainment. Both the original video animation and television series were produced by Ashi Productions as well as Animax.