Dennis Lee, OC, MA (born 31 August 1939) is a Canadian poet and thinker who lives in Toronto, Ontario. He is also a children's writer.
After attending high school at the University of Toronto Schools, Lee received bachelor's and master's degrees in English from the University of Toronto. He is best known for his children's writings; his most famous work is the rhymed Alligator Pie (1974). He also wrote the lyrics to the theme song of the 1980s television show Fraggle Rock and, with Philip Balsam, many of the other songs for that show. Balsam and Lee also wrote the songs for the television special The Tale of the Bunny Picnic. Lee is co-writer of the story for the film Labyrinth.