Barbie: Mermaidia (alternatively Barbie Fairytopia: Mermaidia) is a 2006 direct-to-video Barbie film directed by Walter P. Martishius and William Lau, and produced by Mainframe Entertainment. It is seventh in the Barbie film series of computer-animated Barbie films, and a direct sequel to Barbie: Fairytopia. The film stars Kelly Sheridan as the voice of Elina and Chiara Zanni as the voice of Nori. The plot follows shortly after the events of Barbie: Fairytopia, focusing on a fairy named Elina and a mermaid named Nori who attempt to rescue Nalu, a merman prince, from the clutches of the evil Laverna. Like all the CGI Barbie films, a line of dolls and toys were produced and released with the film. This was also the last Barbie film to be released on VHS.