The Beast and the Magic Sword (Spanish: La Bestia y la Espada Magica) is a 1983 Spanish/Japanese horror film that is the tenth in a long series of films about the werewolf Count Waldemar Daninsky, played by Paul Naschy. This film moved the Daninsky family curse back to a medieval setting, as Naschy felt the Daninsky saga need not always be confined to a modern-day setting.

The film was shot in Japan, and Naschy brought his wife and two sons with him for the adventure, even allowing them to appear in a brief cameo role in the picture.

Although Naschy always regarded this film to be one of the best movies he ever made, it was never dubbed in English, nor offered legally on VHS or DVD in the U.S. or the U.K. The film was however screened at the Brussels International Film Festival in November 1983, along with Naschy's other 1983 film Panic Beats, and Naschy was given a prize in recognition of his body of work in the cinefantastique genre.

The film first opened theatrically in Spain in April 1984. Although the film was a Spanish/Japanese co-production, for some reason it was never theatrically shown in Japan, nor in any country outside of Spain.This film was followed by the 11th film in the series, entitled Licantropo, in 1996.