Mundos Opuestos is the second studio album by American Latin pop duo Ha*Ash. It was published under the Sony BMG label on September 27, 2005. The album was produced by Áureo Baqueiro. Four singles were released from the album.

Ha*Ash is an American Latin pop duo from Lake Charles, Louisiana, formed in 2002 by sisters Hanna Nicole and Ashley Grace. The group's name is a portmanteau of letters from their first names. They have released six studio albums, with the most recent, Haashtag, being released in 2022. From 2014 to 2017, all of their singles received at least a gold certification from the Mexican Association of Producers of Phonograms and Videograms. They are the first group to have one ballad in Spanish with at least one billion views on YouTube.