Mountain Dew Baja Blast is a tropical lime-flavored soft drink created for Taco Bell restaurants.

Created for, and exclusively sold at Taco Bell locations, it was a collaboration between the company and Mountain Dew owners PepsiCo.

It was put up against Mountain Dew flavor Pitch Black, and fans would vote for their favorite, the winner of which would be kept on store shelves permanently.

The campaign featured wide promotion of both flavors, including advertisements,[14] NASCAR paint schemes[15] and a "Dewggro Crag" event themed around the Nickelodeon game show Guts.

[25][26][27] Select locations, branded "Taco Bell Cantina," offered the alcoholic "Mountain Dew Baja Blast Twisted Freeze.

[29][30][31] In 2022, Baja Blast was announced as one of the flavors of the Hard Mountain Dew line of alcoholic beverages, which would release in retail stores later that year.

[40] Taco Bell began testing a Baja Blast gelato on their menu in August 2023; during which it was offered for two weeks at a single location in Irvine, CA.

[42] In January 2024, Pepsi announced that in celebration of the 20th anniversary of Baja Blast, it would remain on shelves all year long, instead of its prior summer-only retail availability.