DrinkOrDie (DoD) was an underground software piracy group and warez trading network during the 1990s. On December 11, 2001, a major law enforcement raid - known as Operation Buccaneer - forced it to close under criminal charges of infringement. DoD, as a rule, received no financial profit for their activities. The DoD network - which primarily consisted of university undergraduates - was also supported by software company employees, who would leak copies of software and other digital media. DoD was also actively involved in illicit file-trading with other networks.

DrinkOrDie was founded in 1993 in Moscow by a Russian with the handle "deviator" and a friend who went by the code name "CyberAngel." By 1995, the group was global.

One of its earliest major accomplishments was the Internet release of Windows 95 two weeks before Microsoft released the official version. It is also known for its DoD DVD Speed Ripper released in 1999 shortly before DeCSS. The activity of the DoD group diminished after 1996, and they were not considered major players in the warez scene by 2000.