P2

P2, P02, P.2, or P-2 might refer to several subjects:

Technology

 * P2 (storage media), a "Professional Plug-in" solid state data storage technology employed by Panasonic
 * DSC-P2, a Sony Cyber-shot P series camera model
 * Honda P2, a 1996 Honda P series of robots, an ASIMO predecessor
 * Intel 80286, 2nd generation processor architecture
 * Pentium II, 6th generation Intel central processing unit
 * Samsung P2, a 2007 flash memory based Yepp portable media player
 * P2 audio connector, see Phone connector (audio)

Science

 * Bacteriophage P2, a temperate phage of the family Myoviridae that infects E. coli
 * P2 laboratory, biosafety-level-2 laboratory
 * P2 receptor, a purinergic and pyrimidinergic cell surface receptor
 * P2, a pulmonic valve closure sound
 * Nix (moon) (former designation P2), a moon of Pluto
 * P200 or P2, a component of brain evoked-response potential
 * ATC code P02 Anthelmintics, a subgroup of the Anatomical Therapeutic Chemical Classification System
 * Buffer P2, a lysis buffer solution
 * Period 2, of the periodic table
 * Pollution prevention in the US, an environmental management strategy emphasizing avoiding waste rather than treating it
 * Diphosphorus, an inorganic chemical
 * SARS-CoV-2 Zeta variant, one of the variants of SARS-CoV-2, the virus that causes COVID-19

Transportation

 * P2 transport, a World War II passenger ship/troop ship design of the United States Maritime Commission
 * P2, a State 1st class road in Latvia
 * LNER Class P2, a class of 6 British 2-8-2 locomotives designed by Sir Nigel Gresley

Aircraft

 * P-2 Hawk, a variant of the 1923 P-1 Hawk biplane fighter of the United States Army Air Corps
 * P-2 Neptune, known as "P2V Neptune" until 1962, a United States Navy maritime patrol and antisubmarine warfare aircraft introduced in 1947
 * Piaggio P.2, a 1923 Italian fighter prototype
 * Pilatus P-2, a Swiss Air Force trainer aircraft in service from 1946 to 1981
 * Polikarpov P-2, a Soviet Polikarpov biplane trainer prototype

Automobiles

 * Alfa Romeo P2, an iconic 1920s racing automobile
 * Prodrive P2, an automobile built by Prodrive
 * Volvo P2 platform, an automobile platform

Entertainment

 * P2 (film), a 2007 suspense/thriller film directed by Franck Khalfoun
 * P2 virus, a fictional virus in the novel The Second Angel
 * DR P2, a Danish radio channel playing classical music and jazz, literary programming and radio dramas
 * NRK P2, a Norwegian radio channel playing cultural programming operated by Norsk rikskringkasting
 * Sveriges Radio P2, a Swedish radio channel playing classical music, jazz and world music operated by Sveriges Radio
 * Persona 2, 1999 and 2000 role-playing video games by Atlus
 * Portal 2, a 2011 puzzle-platform video game by Valve
 * Postal 2, a 2003 first-person shooter by Running with Scissors
 * "P2" (song), a 2020 song by Lil Uzi Vert from the album Eternal Atake

Other uses

 * P2 (panel building), a design for blocks of flats used in East Germany
 * Papyrus 2 (P2, ), a papyrus New Testament manuscript
 * Propaganda Due, an Italian Masonic lodge, legal 1945–76 and afterwards clandestine and conspiratorial