P18

P18 may refer to:

• P18 (band), a French electronic music group
• CDKN2C, an enzyme
• Gotland Regiment, of the Swedish Army
• HMS Vagabond (P18), a submarine of the Royal Navy
• Leukemia-associated phosphoprotein p18
• Oxon Hill–Fort Washington Line, a bus route of the Washington Metropolitan Area Transit Authority
• P-18 radar, a Soviet radar system
• Papago Army Heliport, in Maricopa County, Arizona, United States
• Papyrus 18, a biblical manuscript
• Rogak P-18, a pistol