No, there are no Mayan temples in Cozumel, Mexico. Cozumel is an island located off the coast of the Yucatán Peninsula in Mexico, and it was primarily inhabited by the Maya people during the post-classic period (900-1521 AD). However, there are no known Mayan temples or ruins on the island itself. The closest Mayan ruins to Cozumel are located on the mainland of Mexico, in the state of Quintana Roo, such as the famous ruins of Tulum and Cobá.