The Ann Arbor Sun was a biweekly underground newspaper founded by John Sinclair in April 1967.

The newspaper was originally called the Warren-Forest Sun (the name refers to the neighborhood in Detroit between Warren Avenue and Forest Avenue) before it was changed to the Ann Arbor Sun in 1968 when Trans-Love Energies moved to Ann Arbor.

The organization, founded by John Sinclair, his wife Leni Sinclair and artist Gary Grimshaw in 1967, set up shop in two big communal houses at 1510 and 1520 Hill St, where the Ann Arbor Sun was produced and edited by the members of the group.

Early issues of the paper were printed with the silk screen and mimeograph equipment of the Artists Workshop Press, which Sinclair brought with him from Detroit to Ann Arbor.

[1] On July 28, 1969, the Ann Arbor Sun printed a revised copy of the White Panther's ten-point program.