P2 can refer to many things

• position 2 in a race
• Intel 2nd generation processor design, or 286, i286, 80286
• Intel Pentium II, a 6th generation CPU design
• Propaganda Due, an Italian renegade Freemason lodge
• Period 2 of the periodic table
• A class of locomotive designed by Sir_Nigel_Gresley
• A train mapping and describer system used in the United Kingdom, built by Atos Origin
• Radio stations in the Nordic countries
  • Denmark: DR P2
  • Norway: NRK P2
  • Sweden: SR P2
• A solid state data storage technology employed by Panasonic. P2 refers to the "Professional Plug-in", a memory card that replaces magnetic tape for recording video.

See also

• P1
• P3