Franklin and the Turtle Lake Treasure (Franklin et le trésor du lac in France and Benjamin et le Trésor du lac in Canadian French) is a children's animated adventure drama film released on September 6, 2006 direct-to-video, based on the TV series Franklin. It was the first Franklin film shown in theaters in Canada and France, as well as the last production in the Franklin series to be traditionally animated.

The events of this film centre around Franklin's Granny falling ill during a visit from Franklin's aunt Lucy, who is an archaeologist. Aunt Lucy knows of a special talisman that may cure the illness, so she joins Franklin on a quest to find it, along with his friends Bear, Beaver, and Snail. But they are also accompanied by Aunt Lucy's goddaughter, Samantha "Sam," and her personality clashes with Franklin's.

The film was released to direct-to-video in the United States by HBO and has had occasional TV airings on the Nick Jr. Channel since then. Writer John van Bruggen stated, "This film will take Franklin on a much greater adventure than any of the past Franklin films, including Franklin and the Green Knight." The film was written by John van Bruggen and directed by Dominique Monfrey; it was distributed by Mars Distribution. StudioCanal controlled international distribution. This film has also been listed under the working titles "Franklin and the Secret Talisman" and "Franklin and Granny's Secret."

It also serves as the series finale to the 1997 series, as no new episodes were produced after the film was released. This was Patricia Gage's final performance before she died four years later, in 2010.