Since digital communications protocols are controlled by software, protocol versioning generally follows software versioning standards.

• The Pier
• The Pietasters
• The Pigeon Egg Strategy
• The Piglet Files
• The Pigman
• The Pile (NYC World Trade Center)
• The Pilgrim (1923 film)
• The Pilgrimage
• The Pilgrim's Progress
• The Pilgrim's Regress
• The pill
• The Pillage
• The Pillars of Creation
• The Pillars of Hercules
• The Pillars of Society
• The Pillars of the Earth
• The Pillow Book
• The Pillow Book (film)
• The Pillow Book (movie)
• The Pillowman
• The Pillows
• The Pillsbury Company
• The Pillsbury Doughboy
• The Pilot (Friends)
• The Pilot (Married... with Children)