Dirty thirty may refer to:

• Dirty 30 (film), a 2016 comedy film
• Dirty Thirty (album), a 2019 compilation album by Australian rock band The Screaming Jets
• Dirty thirty (Guantanamo Bay Naval Base), a group of Arab captives in Guantanamo, believed to be Osama bin Laden bodyguards
• Dirty thirty (NYPD), a 1990s group of NYPD officers suspected of improprieties
• Dirty thirty (Sellafield), Building B30 at Sellafield, "the most hazardous industrial building in western Europe"
• Dirty thirty (Vietnam), a group of USAF pilots in the Vietnam War
• Dirty thirty (WWF), the World Wildlife Federation list of dirty fossil-fueled electric plant
• Dirty Thirty, a group of rogue agents in the TV series Nikita
• The Challenge XXX: Dirty 30, the 30th season of the MTV reality competition series, The Challenge

This disambiguation page lists articles associated with the title Dirty thirty.
If an internal link led you here, you may wish to change the link to point directly to the intended article.