Delta State is a Canadian animated television series, based on a comic book by Douglas Gayeton, featuring four amnesiac roommates with the ability to subconsciously enter an ethereal realm known as the Delta State. They face the dual tasks of piecing together their past lives and battling a group of Delta State denizens called Rifters, who seek to control the human mind. The main characters are Claire, Martin, Luna, and Philip.

The series debuted September 11, 2004 on Teletoon, the Canadian cartoon television network. It is the first animated television series to be entirely rotoscoped, taking over 27 months to complete.

Delta State is a French / Canadian co-production with designs, story-boards etc. done by Alphanim in Paris; shooting and recording were performed by Nelvana Canada. The project was conceived by Douglas Gayeton, who also directed the original pilot and wrote the bible for the show.

The show has won the Special Award for a TV program at the Annecy International Animated Film Festival and the Frames 2004 for best Asian Production.

The series aired in France from March 9, 2005 on Canal+.