Anne Of Green Gables: The Musical is a musical based on the 1908 novel Anne of Green Gables by Lucy Maud Montgomery. The book was written by Don Harron exclusively, the music by Norman Campbell and the lyrics in a joint venture by Don Harron, Norman Campbell, Elaine Campbell and Mavor Moore. The musical is Canada's longest-running musical, having been performed annually from its opening in 1965 until 2019, with the 2020 production cancelled due to the COVID-19 pandemic. There was no performance in 2021. In March 2014, it was officially recognized as the longest running annual musical theatre production in the world by Guinness World Records.