X-Treme was a Mountain Dew flavor that was first released as a limited-edition flavor in Kuwait in December 2010 and later spread to many other middle-eastern areas, such as Saudi Arabia, Qatar, Oman, and the United Arab Emirates.
Its tagline was "Do you dare?".
- X-Treme was one of seven grape flavored Mountain Dew variants. (See "Similar Flavors" in the infobox)
- In 2017, Mountain Dew Honduras released a different version of Voltage which was also known as X-Treme.